Ambush predator

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A camouflaged female goldenrod crab spider (Misumena vatia) ambushing the female of a pair of mating flies Spider and fly April 2008-6.jpg
A camouflaged female goldenrod crab spider ( Misumena vatia ) ambushing the female of a pair of mating flies

Ambush predators or sit-and-wait predators are carnivorous animals that capture their prey via stealth, luring or by (typically instinctive) strategies utilizing an element of surprise. Unlike pursuit predators, who chase to capture prey using sheer speed or endurance, ambush predators avoid fatigue by staying in concealment, waiting patiently for the prey to get near, before launching a sudden overwhelming attack that quickly incapacitates and captures the prey.

Contents

The ambush is often opportunistic, and may be set by hiding in a burrow, by camouflage, by aggressive mimicry, or by the use of a trap (e.g. a web). The predator then uses a combination of senses to detect and assess the prey, and to time the strike. Nocturnal ambush predators such as cats and snakes have vertical slit pupils helping them to judge the distance to prey in dim light. Different ambush predators use a variety of means to capture their prey, from the long sticky tongues of chameleons to the expanding mouths of frogfishes.

Ambush predation is widely distributed in the animal kingdom, spanning some members of numerous groups such as the starfish, cephalopods, crustaceans, spiders, insects such as mantises, and vertebrates such as many snakes and fishes.

Strategy

In the foraging cycle, ambush predators choose variants of the sit-and-wait strategy in place of active pursuit to capture their prey. Foraging Sequence.svg
In the foraging cycle, ambush predators choose variants of the sit-and-wait strategy in place of active pursuit to capture their prey.

Ambush predators usually remain motionless (sometimes hidden) and wait for prey to come within ambush distance before pouncing. Ambush predators are often camouflaged, and may be solitary. Pursuit predation becomes a better strategy than ambush predation when the predator is faster than the prey. [2] Ambush predators use many intermediate strategies. For example, when a pursuit predator is faster than its prey over a short distance, but not in a long chase, then either stalking or ambush becomes necessary as part of the strategy. [2]

Bringing the prey within range

Concealment

Ambush often relies on concealment, whether by staying out of sight or by means of camouflage.

Burrows

Sason robustum and its nest.jpg
The trapdoor spider Sason robustum and its nest

Ambush predators such as trapdoor spiders and Australian crab spiders on land and mantis shrimps in the sea rely on concealment, constructing and hiding in burrows. These provide effective concealment at the price of a restricted field of vision. [3] [4] [5] [6]

Trapdoor spiders excavate a burrow and seal the entrance with a web trapdoor hinged on one side with silk. The best-known is the thick, bevelled "cork" type, which neatly fits the burrow's opening. The other is the "wafer" type; it is a basic sheet of silk and earth. The door's upper side is often effectively camouflaged with local materials such as pebbles and sticks. The spider spins silk fishing lines, or trip wires, that radiate out of the burrow entrance. When the spider is using the trap to capture prey, its chelicerae (protruding mouthparts) hold the door shut on the end furthest from the hinge. Prey make the silk vibrate, and alert the spider to open the door and ambush the prey. [7] [8]

Camouflage

Tasselled Wobbegong Shark (14280770698).jpg
Tasselled wobbegong relies on its disruptive camouflage to ambush fish and invertebrates.
Striped anglerfish ( Antennarius striatus ).jpg
Striated frogfish uses camouflage and aggressive mimicry in the form of a fishing rod-like esca (lure) on its head to attract prey.

Many ambush predators make use of camouflage so that their prey can come within striking range without detecting their presence. Among insects, coloration in ambush bugs closely matches the flower heads where they wait for prey. [9] Among fishes, the warteye stargazer buries itself nearly completely in the sand and waits for prey. [10] The devil scorpionfish typically lies partially buried on the sea floor or on a coral head during the day, covering itself with sand and other debris to further camouflage itself. [11] [12] [13] [14] The tasselled wobbegong is a shark whose adaptations as an ambush predator include a strongly flattened and camouflaged body with a fringe that breaks up its outline. [15] Among amphibians, the Pipa pipa's brown coloration blends in with the murky waters of the Amazon Rainforest which allows for this species to lie in wait and ambush its prey. [16]

Aggressive mimicry

229 - ZONE-TAILED HAWK (4-11-2015) blue haven road, patagonia, santa cruz co, az -02 (16906279787).jpg
Claimed mimic: zone-tailed hawk
Cathartes aura-in flight-bodega head.jpg
Prey and possible model: Turkey vulture
The orchid mantis, Hymenopus coronatus, mimics a rainforest orchid of southeast Asia to lure its prey, pollinator insects. Mantis Hymenopus coronatus 6 Luc Viatour (cropped).jpg
The orchid mantis, Hymenopus coronatus , mimics a rainforest orchid of southeast Asia to lure its prey, pollinator insects.

Many ambush predators actively attract their prey towards them before ambushing them. This strategy is called aggressive mimicry, using the false promise of nourishment to lure prey. The alligator snapping turtle is a well-camouflaged ambush predator. Its tongue bears a conspicuous pink extension that resembles a worm and can be wriggled around; [17] fish that try to eat the "worm" are themselves eaten by the turtle. Similarly, some reptiles such as Elaphe rat snakes employ caudal luring (tail luring) to entice small vertebrates into striking range. [18]

The zone-tailed hawk, which resembles the turkey vulture, flies among flocks of turkey vultures, then suddenly breaks from the formation and ambushes one of them as its prey. [19] [20] There is however some controversy about whether this is a true case of wolf in sheep's clothing mimicry. [21]

Flower mantises are aggressive mimics, resembling flowers convincingly enough to attract prey that come to collect pollen and nectar. The orchid mantis actually attracts its prey, pollinator insects, more effectively than flowers do. [22] [23] [24] [25] Crab spiders, similarly, are coloured like the flowers they habitually rest on, but again, they can lure their prey even away from flowers. [26]

Traps

Antlion1 by Jonathan Numer.jpg
Antlion larva with grasping mandibles
Antlion trap.jpg
Antlion's sandpit trap

Some ambush predators build traps to help capture their prey. Lacewings are a flying insect in the order Neuroptera. In some species, their larval form, known as the antlion, is an ambush predator. Eggs are laid in the earth, often in caves or under a rocky ledge. The juvenile creates a small, crater shaped trap. The antlion hides under a light cover of sand or earth. When an ant, beetle or other prey slides into the trap, the antlion grabs the prey with its powerful jaws. [27] [28]

Some but not all web-spinning spiders are sit-and-wait ambush predators. The sheetweb spiders (Linyphiidae) tend to stay with their webs for long periods and so resemble sit-and-wait predators, whereas the orb-weaving spiders (such as the Araneidae) tend to move frequently from one patch to another (and thus resemble active foragers). [29]

Detection and assessment

Many nocturnal ambush predators like this leopard cat have vertical pupils, enabling them to judge distance to prey accurately in dim light. Leopard cat vertical pupils nocturnal ambush predator.jpg
Many nocturnal ambush predators like this leopard cat have vertical pupils, enabling them to judge distance to prey accurately in dim light.

Ambush predators must time their strike carefully. They need to detect the prey, assess it as worth attacking, and strike when it is in exactly the right place. They have evolved a variety of adaptations that facilitate this assessment. For example, pit vipers prey on small birds, choosing targets of the right size for their mouth gape: larger snakes choose larger prey. They prefer to strike prey that is both warm and moving; [31] their pit organs between the eye and the nostril contain infrared (heat) receptors, enabling them to find and perhaps judge the size of their small, warm-blooded prey. [32]

The deep-sea tripodfish Bathypterois grallator uses tactile and mechanosensory cues to identify food in its low-light environment. [33] The fish faces into the current, waiting for prey to drift by. [34] [35] [36]

Several species of Felidae (cats) and snakes have vertically elongated (slit) pupils, advantageous for nocturnal ambush predators as it helps them to estimate the distance to prey in dim light; diurnal and pursuit predators in contrast have round pupils. [30]

Capturing the prey

MantisShrimpLyd.jpg
Mantis shrimp captures its prey rapidly with its mantis-like front legs.
Commerson's Frogfish, Kona, Hawaii (cropped).jpg
Frogfish traps its prey by suddenly opening its jaws and sucking the prey in.

Ambush predators often have adaptations for seizing their prey rapidly and securely. The capturing movement has to be rapid to trap the prey, given that the attack is not modifiable once launched. [6] [37] Zebra mantis shrimp capture agile prey such as fish primarily at night while hidden in burrows, striking very hard and fast, with a mean peak speed 2.30 m/s (5.1 mph) and mean duration of 24.98 ms. [37]

A chameleon's tongue striking ballistically at food Chameleons Tongue.GIF
A chameleon's tongue striking ballistically at food

Chameleons (family Chamaeleonidae) are highly adapted as ambush predators. [38] They can change colour to match their surroundings and often climb through trees with a swaying motion, probably to mimic the movement of the leaves and branches they are surrounded by. [38] All chameleons are primarily insectivores and feed by ballistically projecting their tongues, often twice the length of their bodies, to capture prey. [39] [40] The tongue is projected in as little as 0.07 seconds, [41] [42] and is launched at an acceleration of over 41  g. [42] The power with which the tongue is launched, over 3000 W·kg−1, is more than muscle can produce, indicating that energy is stored in an elastic tissue for sudden release. [41]

All fishes face a basic problem when trying to swallow prey: opening their mouth may pull food in, but closing it will push the food out again. Frogfishes capture their prey by suddenly opening their jaws, with a mechanism which enlarges the volume of the mouth cavity up to 12-fold and pulls the prey (crustaceans, molluscs and other whole fishes) into the mouth along with water; the jaws close without reducing the volume of the mouth cavity. The attack can be as fast as 6 milliseconds. [43]

Taxonomic range

Video of a water bug nymph attacking a fish

Ambush predation is widely distributed across the animal kingdom. It is found in many vertebrates including fishes such as the frogfishes (anglerfishes) of the sea bottom, and the pikes of freshwater; reptiles including crocodiles, [44] snapping turtles, [45] the mulga dragon, [46] and many snakes such as the black mamba; [47] mammals such as the cats; [48] and birds such as the anhinga (darter). [49] The strategy is found in several invertebrate phyla including arthropods such as mantises, [50] [51] [52] purseweb spiders, [53] and some crustaceans; [3] cephalopod molluscs such as the colossal squid; [54] and starfish such as Leptasterias tenera . [55]

Related Research Articles

<span class="mw-page-title-main">Predation</span> Biological interaction

Predation is a biological interaction where one organism, the predator, kills and eats another organism, its prey. It is one of a family of common feeding behaviours that includes parasitism and micropredation and parasitoidism. It is distinct from scavenging on dead prey, though many predators also scavenge; it overlaps with herbivory, as seed predators and destructive frugivores are predators.

<span class="mw-page-title-main">Mimicry</span> Evolutionary strategy

In evolutionary biology, mimicry is an evolved resemblance between an organism and another object, often an organism of another species. Mimicry may evolve between different species, or between individuals of the same species. In the simplest case, as in Batesian mimicry, a mimic resembles a model, so as to deceive a dupe, all three being of different species. A Batesian mimic, such as a hoverfly, is harmless, while its model, such as a wasp, is harmful, and is avoided by the dupe, such as an insect-eating bird. Birds hunt by sight, so the mimicry in that case is visual, but in other cases mimicry may make use of any of the senses. Most types of mimicry, including Batesian, are deceptive, as the mimics are not harmful, but Müllerian mimicry, where different harmful species resemble each other, is honest, as when species of wasps and of bees all have genuinely aposematic warning coloration. More complex types may be bipolar, involving only two species, such as when the model and the dupe are the same; this occurs for example in aggressive mimicry, where a predator in wolf-in-sheep's-clothing style resembles its prey, allowing it to hunt undetected. Mimicry is not limited to animals; in Pouyannian mimicry, an orchid flower is the mimic, resembling a female bee, its model; the dupe is the male bee of the same species, which tries to copulate with the flower, enabling it to transfer pollen, so the mimicry is again bipolar. In automimicry, another bipolar system, model and mimic are the same, as when blue lycaenid butterflies have 'tails' or eyespots on their wings that mimic their own heads, misdirecting predator dupes to strike harmlessly. Many other types of mimicry exist.

<span class="mw-page-title-main">Batesian mimicry</span> Bluffing imitation of a strongly defended species

Batesian mimicry is a form of mimicry where a harmless species has evolved to imitate the warning signals of a harmful species directed at a predator of them both. It is named after the English naturalist Henry Walter Bates, who worked on butterflies in the rainforests of Brazil.

<span class="mw-page-title-main">Anti-predator adaptation</span> Defensive feature of prey for selective advantage

Anti-predator adaptations are mechanisms developed through evolution that assist prey organisms in their constant struggle against predators. Throughout the animal kingdom, adaptations have evolved for every stage of this struggle, namely by avoiding detection, warding off attack, fighting back, or escaping when caught.

<span class="mw-page-title-main">Müllerian mimicry</span> Mutually beneficial mimicry of strongly defended species

Müllerian mimicry is a natural phenomenon in which two or more well-defended species, often foul-tasting and sharing common predators, have come to mimic each other's honest warning signals, to their mutual benefit. The benefit to Müllerian mimics is that predators only need one unpleasant encounter with one member of a set of Müllerian mimics, and thereafter avoid all similar coloration, whether or not it belongs to the same species as the initial encounter. It is named after the German naturalist Fritz Müller, who first proposed the concept in 1878, supporting his theory with the first mathematical model of frequency-dependent selection, one of the first such models anywhere in biology.

<span class="mw-page-title-main">Crypsis</span> Aspect of animal behaviour and morphology

In ecology, crypsis is the ability of an animal or a plant to avoid observation or detection by other animals. It may be a predation strategy or an antipredator adaptation. Methods include camouflage, nocturnality, subterranean lifestyle and mimicry. Crypsis can involve visual, olfactory or auditory concealment. When it is visual, the term cryptic coloration, effectively a synonym for animal camouflage, is sometimes used, but many different methods of camouflage are employed in nature.

A wolf in sheep's clothing is an idiom from Jesus's Sermon on the Mount as narrated in the Gospel of Matthew. It warns against individuals who play a duplicitous role. The gospel regards such individuals as dangerous.

<i>Hymenopus coronatus</i> Species of praying mantis

Hymenopus coronatus is a mantis from the tropical forests of Southeast Asia. It is known by various common names, including walking flower mantis, orchid-blossom mantis and (pink) orchid mantis. It is one of several species known as flower mantis, a reference to their unique physical form and behaviour, which often involves moving with a “swaying” motion, as if being “blown” in the breeze. Several species have evolved to mimic orchid flowers as a hunting and camouflaging strategy, “hiding” themselves in plain view and preying upon pollinating insects that visit the blooms. They are known to grab their prey with blinding speed.

<span class="mw-page-title-main">Ant mimicry</span> Animals that resemble ants

Ant mimicry or myrmecomorphy is mimicry of ants by other organisms; it has evolved over 70 times. Ants are abundant all over the world, and potential predators that rely on vision to identify their prey, such as birds and wasps, normally avoid them, because they are either unpalatable or aggressive. Some arthropods mimic ants to escape predation, while some predators of ants, especially spiders, mimic them anatomically and behaviourally in aggressive mimicry. Ant mimicry has existed almost as long as ants themselves; the earliest ant mimics in the fossil record appear in the mid-Cretaceous alongside the earliest ants.

Spider behavior refers to the range of behaviors and activities performed by spiders. Spiders are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom. They are the largest order of arachnids and rank seventh in total species diversity among all other groups of organisms which is reflected in their large diversity of behavior.

<span class="mw-page-title-main">Flower mantis</span> Species of mantis camouflaged to resemble flowers to lure their prey

Flower mantises are praying mantises that use a special form of camouflage referred to as aggressive mimicry, which they not only use to attract prey, but avoid predators as well. These insects have specific colorations and behaviors that mimic flowers in their surrounding habitats.

<span class="mw-page-title-main">Aggressive mimicry</span> Deceptive mimicry of a harmless species by a predator

Aggressive mimicry is a form of mimicry in which predators, parasites, or parasitoids share similar signals, using a harmless model, allowing them to avoid being correctly identified by their prey or host. Zoologists have repeatedly compared this strategy to a wolf in sheep's clothing. In its broadest sense, aggressive mimicry could include various types of exploitation, as when an orchid exploits a male insect by mimicking a sexually receptive female, but will here be restricted to forms of exploitation involving feeding. For example, indigenous Australians who dress up as and imitate kangaroos when hunting would not be considered aggressive mimics, nor would a human angler, though they are undoubtedly practising self-decoration camouflage. Treated separately is molecular mimicry, which shares some similarity; for instance a virus may mimic the molecular properties of its host, allowing it access to its cells. An alternative term, Peckhamian mimicry, has been suggested, but it is seldom used.

<span class="mw-page-title-main">Animal coloration</span> General appearance of an animal

Animal colouration is the general appearance of an animal resulting from the reflection or emission of light from its surfaces. Some animals are brightly coloured, while others are hard to see. In some species, such as the peafowl, the male has strong patterns, conspicuous colours and is iridescent, while the female is far less visible.

<span class="mw-page-title-main">Caudal luring</span> Form of aggressive mimicry where the predator attracts prey using its tail

Caudal luring is a form of aggressive mimicry characterized by the waving or wriggling of the predator's tail to attract prey. This movement attracts small animals who mistake the tail for a small worm or other small animal. When the animal approaches to prey on the worm-like tail, the predator will strike. This behavior has been recorded in snakes, sharks, and eels.

<span class="mw-page-title-main">Chemical mimicry</span> Biological mimicry using chemicals

Chemical mimicry is a type of biological mimicry involving the use of chemicals to dupe an operator.

<span class="mw-page-title-main">Structures built by animals</span>

Structures built by non-human animals, often called animal architecture, are common in many species. Examples of animal structures include termite mounds, ant hills, wasp and beehives, burrow complexes, beaver dams, elaborate nests of birds, and webs of spiders.

Deception in animals is the voluntary or involuntary transmission of misinformation by one animal to another, of the same or different species, in a way that misleads the other animal. Robert Mitchell identifies four levels of deception in animals. At the first level, as with protective mimicry like false eyespots and camouflage, the action or display is inbuilt. At the second level, an animal performs a programmed act of behaviour, as when a prey animal feigns death to avoid being eaten. At the third level, the deceptive behaviour is at least partially learnt, as when a bird puts on a distraction display, feigning injury to lure a predator away from a nest. Fourth level deception involves recognition of the other animal's beliefs, as when a chimpanzee tactically misleads other chimpanzees to prevent their discovering a food source.

<span class="mw-page-title-main">Lingual luring</span>

Lingual luring is a form of aggressive mimicry in which a predator uses its tongue to fool potential prey into approaching close to what appears to be a small wriggling worm.

<span class="mw-page-title-main">Egg predation</span> Feeding strategy for many animals

Egg predation or ovivory is a feeding strategy in many groups of animals (ovivores) in which they consume eggs. Since a fertilized egg represents a complete organism at one stage of its life cycle, eating an egg is a form of predation, the killing of another organism for food.

In evolutionary biology, mimicry in vertebrates is mimicry by a vertebrate of some model, deceiving some other animal, the dupe. Mimicry differs from camouflage as it is meant to be seen, while animals use camouflage to remain hidden. Visual, olfactory, auditory, biochemical, and behavioral modalities of mimicry have been documented in vertebrates.

References

  1. Kramer, Donald L. (2001). "Foraging behavior" (PDF). In Fox, C. W.; Roff, D. A.; Fairbairn, D. J. (eds.). Evolutionary Ecology: Concepts and Case Studies. Oxford University Press. pp. 232–238. ISBN   9780198030133. Archived from the original (PDF) on 12 July 2018. Retrieved 20 September 2018.
  2. 1 2 Scharf, I.; Nulman, E.; Ovadia, O.; Bouskila, A. (2006). "Efficiency evaluation of two competing foraging modes under different conditions" (PDF). The American Naturalist. 168 (3): 350–357. doi:10.1086/506921. PMID   16947110. S2CID   13809116.
  3. 1 2 deVries, M. S.; Murphy, E. A. K.; Patek S. N. (2012). "Strike mechanics of an ambush predator: the spearing mantis shrimp". Journal of Experimental Biology. 215 (Pt 24): 4374–4384. doi: 10.1242/jeb.075317 . PMID   23175528.
  4. "Trapdoor spiders". BBC . Retrieved 12 December 2014.
  5. "Trapdoor spider". Arizona-Sonora Desert Museum. 2014. Retrieved 12 December 2014.
  6. 1 2 Moore, Talia Y.; Biewener, Andrew A. (2015). "Outrun or Outmaneuver: Predator–Prey Interactions as a Model System for Integrating Biomechanical Studies in a Broader Ecological and Evolutionary Context" (PDF). Integrative and Comparative Biology. 55 (6): 1188–97. doi: 10.1093/icb/icv074 . PMID   26117833.
  7. "Trapdoor spiders". BBC. Retrieved December 12, 2014.
  8. "Trapdoor spider". Arizona-Sonora Desert Museum. 2014. Retrieved December 12, 2014.
  9. Boyle, Julia; Start, Denon (2020). Galván, Ismael (ed.). "Plasticity and habitat choice match colour to function in an ambush bug". Functional Ecology. 34 (4): 822–829. Bibcode:2020FuEco..34..822B. doi: 10.1111/1365-2435.13528 . ISSN   0269-8463. S2CID   214302722.
  10. Froese, Rainer; Pauly, Daniel (eds.). "Gillellus uranidea". FishBase . April 2013 version.
  11. Gosline, William A. (July 1994). "Function and structure in the paired fins of scorpaeniform fishes". Environmental Biology of Fishes. 40 (3): 219–226. Bibcode:1994EnvBF..40..219G. doi:10.1007/BF00002508. hdl: 2027.42/42637 . S2CID   30229791.
  12. World Database of Marine Species: Spiny devil fish Archived 2012-03-04 at the Wayback Machine . Accessed 03-22-2010.
  13. Michael, Scott (Winter 2001). "Speak of the devil: fish in the genus Inimicus" (PDF). SeaScope. 18. Archived from the original (PDF) on 2011-07-13. Retrieved 2010-03-27.
  14. WetWebMedia.com: The Ghoulfish/Scorpion/Stonefishes of the Subfamily Choridactylinae (Inimicinae), by Bob Fenner. Accessed 03-27-2010.
  15. Ceccarelli, D. M.; Williamson, D. H. (2012-02-04). "Sharks that eat sharks: opportunistic predation by wobbegongs". Coral Reefs. 31 (2): 471. Bibcode:2012CorRe..31..471C. doi: 10.1007/s00338-012-0878-z .
  16. Buchacher, Christian O. (1993-01-01). "Field studies on the small Surinam toad, Pipa arrabali, near Manaus, Brazil". Amphibia-Reptilia. 14 (1): 59–69. doi:10.1163/156853893X00192. ISSN   1568-5381.
  17. Spindel, E. L.; Dobie, J. L.; Buxton, D. F. (2005). "Functional mechanisms and histologic composition of the lingual appendage in the alligator snapping turtle, Macroclemys temmincki (Troost) (Testudines: Chelydridae)". Journal of Morphology. 194 (3): 287–301. doi:10.1002/jmor.1051940308. PMID   29914228. S2CID   49305881.
  18. Mullin, S.J. (1999). "Caudal distraction by rat snakes (Colubridae, Elaphe): A novel behaviour used when capturing mammalian prey". Great Basin Naturalist. 59: 361–367.
  19. Smith, William John (2009). The Behavior of Communicating: an ethological approach. Harvard University Press. p. 381. ISBN   978-0-674-04379-4. Others rely on the technique adopted by a wolf in sheep's clothing—they mimic a harmless species. ... Other predators even mimic their prey's prey: angler fish (Lophiiformes) and alligator snapping turtles Macroclemys temmincki can wriggle fleshy outgrowths of their fins or tongues and attract small predatory fish close to their mouths.
  20. Willis, E. O. (1963). "Is the Zone-Tailed Hawk a Mimic of the Turkey Vulture?". The Condor . 65 (4): 313–317. doi:10.2307/1365357. JSTOR   1365357.
  21. Clark, William S. (2004). "Is the zone-tailed hawk a mimic?". Birding. 36 (5): 495–498.
  22. Cott, Hugh (1940). Adaptive Coloration in Animals. Methuen. pp.  392–393.
  23. Annandale, Nelson (1900). "Observations on the habits and natural surroundings of insects made during the 'Skeat Expedition' to the Malay Peninsula, 1899–1900". Proceedings of the Zoological Society of London. 69: 862–865.
  24. O'Hanlon, James C.; Holwell, Gregory I.; Herberstein, Marie E. (2014). "Pollinator deception in the orchid mantis". The American Naturalist. 183 (1): 126–132. doi: 10.1086/673858 . PMID   24334741. S2CID   2228423.
  25. Levine, Timothy R. (2014). Encyclopedia of Deception. Sage Publications. p. 675. ISBN   978-1-4833-8898-4. In aggressive mimicry, the predator is 'a wolf in sheep's clothing'. Mimicry is used to appear harmless or even attractive to lure its prey.
  26. Vieira, Camila; Ramires, Eduardo N.; Vasconcellos-Neto, João; Poppi, Ronei J.; Romero, Gustavo Q. (2017). "Crab Spider Lures Prey In Flowerless Neighborhoods". Scientific Reports. 7 (1): 9188. Bibcode:2017NatSR...7.9188V. doi:10.1038/s41598-017-09456-y. PMC   5569008 . PMID   28835630.
  27. "Video of antlion larva ambushing an ant". National Geographic. Archived from the original on June 17, 2014. Retrieved November 30, 2014.
  28. "Antlion ambush". BBC. 26 January 2012. Retrieved November 30, 2014.
  29. Janetos, Anthony C. (1982). "Foraging tactics of two guilds of web-spinning spiders". Behavioral Ecology and Sociobiology. 10 (1): 19–27. Bibcode:1982BEcoS..10...19J. doi:10.1007/bf00296392. S2CID   19631772.
  30. 1 2 Banks, M. S.; Sprague, W. W.; Schmoll, J.; Parnell, J. A. Q.; Love, G. D. (2015-08-07). "Why do animal eyes have pupils of different shapes?". Science Advances. 1 (7): e1500391. Bibcode:2015SciA....1E0391B. doi:10.1126/sciadv.1500391. PMC   4643806 . PMID   26601232. Supplement: List of species by pupil shape.
  31. Shine, R.; Sun, L.-X. (2003). "Attack strategy of an ambush predator: which attributes of the prey trigger a pit-viper's strike?". Functional Ecology. 17 (3): 340–348. Bibcode:2003FuEco..17..340S. doi: 10.1046/j.1365-2435.2003.00738.x .
  32. Fang, Janet (2010-03-14). "Snake infrared detection unravelled". Nature. doi:10.1038/news.2010.122.
  33. Hoar, W. S.; Randall, D. J.; Conte, F. P. (1997). Deep-Sea Fishes. Fish Physiology. Vol. 16. Academic Press. p. 344. ISBN   0-12-350440-6.
  34. Hyde, N. (2009). Deep Sea Extremes . Crabtree Publishing Company. p.  16. ISBN   978-0-7787-4501-3.
  35. Winner, C. (2006). Life on the Edge . Lerner Publications. pp.  18. ISBN   0-8225-2499-6.
  36. Gage, J. D.; Tyler, P.A. (1992). Deep-sea biology: a natural history of organisms at the deep-sea floor. Cambridge University Press. p. 86. ISBN   0-521-33665-1.
  37. 1 2 deVries, M. S.; Murphy, E. A. K.; Patek, S. N. (2012). "Strike mechanics of an ambush predator: the spearing mantis shrimp". Journal of Experimental Biology. 215 (24): 4374–4384. doi: 10.1242/jeb.075317 . PMID   23175528.
  38. 1 2 Tolley, Krystal A.; Herrel, Anthony (2013). The Biology of Chameleons. University of California Press. p. 128. ISBN   978-0-520-95738-1. Chameleons may also employ a form of movement-based camouflage, ... [they] often rhythmically rock backward and forward as they walk ... [perhaps] imitating a swaying leaf ... moving in the breeze ... The behavior is widespread in highly cryptic, generally slow-moving, ambush predators, notably chameleons and some snakes and mantids
  39. Anderson, C. V.; Sheridan, T.; Deban, S. M. (2012). "Scaling of the ballistic tongue apparatus in chameleons". Journal of Morphology. 273 (11): 1214–1226. doi:10.1002/jmor.20053. PMID   22730103. S2CID   21033176.
  40. Anderson, Christopher V. (2009) Rhampholeon spinosus feeding video. chamaeleonidae.com
  41. 1 2 de Groot, J. H.; van Leeuwen, J. L. (2004). "Evidence for an elastic projection mechanism in the chameleon tongue". Proceedings of the Royal Society of London B. 271 (1540): 761–770. doi:10.1098/rspb.2003.2637. PMC   1691657 . PMID   15209111.
  42. 1 2 Anderson, C.V.; Deban, S. M. (2010). "Ballistic tongue projection in chameleons maintains high performance at low temperature". Proceedings of the National Academy of Sciences of the United States of America. 107 (12): 5495–5499. Bibcode:2010PNAS..107.5495A. doi: 10.1073/pnas.0910778107 . PMC   2851764 . PMID   20212130.
  43. Bray, Dianne. "Eastern Frogfish, Batrachomoeus dubius". Fishes of Australia. Archived from the original on 14 September 2014. Retrieved 14 September 2014.
  44. "Nile Crocodile: Photos, Video, E-card, Map – National Geographic Kids". Kids.nationalgeographic.com. 2002. Archived from the original on 2009-01-16. Retrieved 2010-03-16.
  45. "Common Snapping Turtle". Canadian Museum of Nature. 2013. Retrieved December 2, 2014.
  46. Browne-Cooper, Robert; Brian Bush; Brad Maryan; David Robinson (2007). Reptiles and Frogs in the Bush: Southwestern Australia. University of Western Australia Press. pp. 145, 146. ISBN   9781920694746.
  47. Richardson, Adele (2004). Mambas. Mankato, Minnesota: Capstone Press. p. 25. ISBN   9780736821377 . Retrieved 2010-05-19.
  48. Etnyre, Erica; Lande, Jenna; Mckenna, Alison. "Felidae | Cats". Animal Diversity Web. Retrieved 28 September 2018.
  49. Ryan, P. G. (2007). "Diving in shallow water: the foraging ecology of darters (Aves: Anhingidae)". Journal of Avian Biology. 38 (4): 507–514. doi:10.1111/j.2007.0908-8857.04070.x (inactive 3 December 2024).{{cite journal}}: CS1 maint: DOI inactive as of December 2024 (link)
  50. "Praying mantis ambushes a grasshopper". National Geographic. Archived from the original on April 14, 2014. Retrieved November 30, 2014.
  51. "Nature wildlife: Praying mantis". BBC . Retrieved November 30, 2014.
  52. "How the praying mantis hides". Pawnation. Retrieved November 30, 2014.
  53. Piper, R. (2007). Extraordinary Animals: An Encyclopedia of Curious and Unusual Animals . Greenwood Press. ISBN   9780313339226.
  54. Bourton, J. (2010). "Monster colossal squid is slow not fearsome predator". BBC . Retrieved December 1, 2014.
  55. Hendler, G.; Franz, D. R. (1982). "The biology of a brooding seastar, Leptasterias tenera, in Block Island Sound". Biological Bulletin. 162 (1): 273–289. doi:10.2307/1540983. JSTOR   1540983. Archived from the original on 2015-09-23. Retrieved 2014-12-01.