Parasites in fiction

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Parasites by Katrin Alvarez. Oil on canvas, 2011 Parasites Katrin Alvarez.jpg
Parasites by Katrin Alvarez. Oil on canvas, 2011

Parasites appear frequently in biology-inspired fiction from ancient times onwards, with a flowering in the nineteenth century. [1] These include intentionally disgusting [2] alien monsters in science fiction films, often with analogues in nature. Authors and scriptwriters have, to some extent, exploited parasite biology: lifestyles including parasitoid, behaviour-altering parasite, brood parasite, parasitic castrator, and many forms of vampire are found in books and films. [2] [3] [4] [5] Some fictional parasites, like Count Dracula and Alien 's Xenomorphs, have become well known in their own right.

Contents

Context

Parasitism in nature is a biological relationship in which one species lives on or in another, causing it harm. Live Tetragnatha montana (RMNH.ARA.14127) parasitized by Acrodactyla quadrisculpta larva (RMNH.INS.593867) - BDJ.1.e992.jpg
Parasitism in nature is a biological relationship in which one species lives on or in another, causing it harm.

In evolutionary biology, parasitism is a relationship between species, where one organism, the parasite, lives on or in another organism, the host, causing it some harm, and is adapted structurally to this way of life. [6] The entomologist E. O. Wilson has characterised parasites as "predators that eat prey in units of less than one". [7] According to the immunologist John Playfair, the term 'parasite' is distinctly derogatory in common usage, where a parasite is "a sponger, a lazy profiteer, a drain on society". [8] The idea is however much older. In ancient Rome, the parasitus was an accepted role in Roman society, in which a person could live off the hospitality of others, in return for "flattery, simple services, and a willingness to endure humiliation". [9] [10]

Motifs

Nineteenth century novels

Bela Lugosi as the vampire Count Dracula, 1931 Bela Lugosi as Dracula, anonymous photograph from 1931, Universal Studios.jpg
Bela Lugosi as the vampire Count Dracula, 1931

Parasitism featured repeatedly as a literary motif in the nineteenth century, though the mechanisms, biological or otherwise, are not always described in detail. [11] For example, the eponymous Beetle in The Beetle by Richard Marsh, 1897, is parasitic and symbolically castrates the human protagonist. [11] Bram Stoker's 1897 Dracula starts out as an apparently human host, welcoming guests to his home, before revealing his parasitic vampire nature. Conan Doyle's Parasite, in his 1894 book The Parasite , makes use of a form of mind control similar to the mesmerism of the Victorian era; it works on some hosts but not others. [12]

Science fiction

Parasites, represented as extraterrestrial aliens or unnatural [13] beings, are seen in science fiction as distasteful, [13] in contrast to (mutualistic) symbiosis, and sometimes horrible. [13] Practical uses can be made of them, but humans who do so may be destroyed by them. [13] For example, Mira Grant's 2013 novel Parasite envisages a world where people's immune systems are maintained by genetically engineered tapeworms. [14] They form readily understood [13] characters, since, as Gary Westfahl explains, parasites need to exploit their hosts to survive and reproduce. [13]

The social anthropologist Marika Moisseeff argues that Hollywood science fiction favours insects as villain characters because of their parasitism and their swarming behaviour. Such films, she continues, depict the war of culture and nature as "an unending combat between humanity and insect-like extraterrestrial species that tend to parasitize human beings in order to reproduce." [4]

Range

Among the many types of fictional parasite are the mitochondria of Parasite Eve; these are energy-generating organelles in animal cells, imagined as parasitic. Mitochondria, mammalian lung - TEM.jpg
Among the many types of fictional parasite are the mitochondria of Parasite Eve ; these are energy-generating organelles in animal cells, imagined as parasitic.

The range of accounts of fictional parasites and the media used to describe them have greatly increased since the nineteenth century, spanning among other things literary novels, science fiction novels and films, horror films, and video games. [11] [3] [5] [15] The table illustrates the variety of themes and approaches that have become possible.

Examples of the range of accounts of fictional parasites and their biological counterparts
AuthorWorkMediumDateParasiteEffectBiological counterpart
David Cronenberg Shivers Science fiction body horror film 1975Genetically engineeredUseful in organ transplants; sexually transmitted and aphrodisiac when modified by a deranged scientist Genetic engineering and its ethical implications [16]
Metroid Video game 1986 X Parasite Deadly infection; confers useful energy and powers to vaccinated people Pathogens such as bacteria, viruses; vaccines [15] [17]
Hideaki Sena (pharmacologist) Parasite Eve Science fiction horror novel 1995Mitochondria cut free from mutualism in human cellsDeadly parasitism Mitochondria, power-generating organelles, formerly free-living prokaryotic organisms, became mutualistic by symbiogenesis c. 2 billion years ago [18] [19] [20]
Irvine Welsh Filth Novel 1998Talking tapewormSinister, comic; [21] "the most attractive character in the novel"; becomes the sociopathic policeman's alter ego and better self. [22] Tapeworms, intestinal parasites [22]

Fiction and reality

Emerald cockroach wasp (left) "walking" a paralyzed cockroach to its burrow Vespa Joia arrastando barata (cropped).jpg
Emerald cockroach wasp (left) "walking" a paralyzed cockroach to its burrow

Kyle Munkittrick, on the Discover magazine website, writes that the great majority of aliens, far from being as strange as possible, are humanoid. [23] Ben Guarino, in The Washington Post , observes that despite all the "cinematic aliens' gravid grotesquerie", [2] earthly parasites have more horrible [2] ways of life. Guarino cites parasitic wasps that lay their eggs inside living caterpillars, inspiring A. E. Van Vogt's 1939 story "Discord in Scarlet", Robert Heinlein's 1951 novel The Puppet Masters , and Ridley Scott's 1979 film Alien. [2] The eponymous Alien has a "dramatic" [2] life-cycle. Giant eggs hatch into face-huggers that grasp the host's mouth, forcing him to swallow an embryo. It rapidly grows in his intestines, soon afterwards erupting from his chest and growing into a gigantic predatory animal resembling an insect. Guarino cites the parasitologist Michael J. Smout as saying that the "massive changes" [2] are feasible, giving the example of flatworms that transform from an egg to a tadpole-like form to an infective worm. [2] The biologist Claude dePamphilis agrees, too, that parasites can acquire genes from their hosts, giving as example a broomrape plant that had taken up genes from its host on 52 occasions, having thoroughly overcome the host plant's defences. They suggest further themes for future science fiction films, including emerald jewel wasps that turn cockroaches into subservient puppets, able to crawl but unable to act independently; or the barnacle-like crustaceans that castrate their crab hosts, or grow into their brains, altering their behaviour to care for the young barnacles. [2] All the same, a 2013 poll of scientists and engineers by Popular Mechanics magazine revealed that the parasite-based science fiction films The War of the Worlds (Byron Haskin, 1953) and Alien were among their top ten favourites. [24]

Types of parasite

Robert A. Heinlein's behaviour-altering The Puppet Masters on the cover of the September 1951 issue of Galaxy Science Fiction Galaxy 195109.jpg
Robert A. Heinlein's behaviour-altering The Puppet Masters on the cover of the September 1951 issue of Galaxy Science Fiction

Several types of parasite, corresponding more or less accurately to some of those known in biology, are found in literature. [25] These include haematophagic parasites (fictional vampires), parasitoids, behaviour-altering parasites, brood parasites, parasitic castrators, and trophically transmitted parasites, as detailed below.

Haematophagic parasite

In ancient times, myths of blood-drinking demons were widespread, including Lilith who feasted on the blood of babies. [26]

Fictional vampireshaematophagic parasites—began in the modern era with Count Dracula, the title character of Bram Stoker's 1897 gothic horror novel Dracula , and have since appeared in many books and films ranging from horror to science fiction. Along with the shift in genres went a diversification of life-forms and life-cycles, including blood-drinking plants like the "strange orchid" in The Thing from Another World, aliens like H. G. Wells's Martians in The War of the Worlds , "cyber-vamps" like "The Stainless Steel Leech" and "Marid and the Trail of Blood", and psychic bloodsuckers, as in Arthur Conan Doyle's The Parasite and Robert Wiene's 1920 film The Cabinet of Dr. Caligari . [12] [27]

Parasitoid

A 1990s gargoyle at Paisley Abbey resembling a Xenomorph parasitoid from Alien Paisley Abbey "Xenomorph" Gargoyle (10317339143) (cropped).jpg
A 1990s gargoyle at Paisley Abbey resembling a Xenomorph parasitoid from Alien

The Xenomorph in Alien is a parasitoid, inevitably fatal to its human host. It has a life-cycle stage that grows inside the person's body; when mature, the predatory adult Xenomorph bursts out, killing the host. This behaviour was inspired by parasitoid wasps which have just such a life-cycle. [25] [30] [31]

The molecular biologist Alex Sercel compares Xenomorph biology to that of parasitoid wasps and nematomorph worms, arguing that there is a close match. [30] Sercel notes that the way the Xenomorph grasps a human's face to implant its embryo is comparable to the way a parasitoid wasp lays its eggs in a living host. He compares the Xenomorph life cycle to that of the nematomorph Paragordius tricuspidatus , which grows to fill its host's body cavity before bursting out and killing it. [30]

The marine biologist Alistair Dove writes that there are multiple parallels between Xenomorphs and parasitoids, though there are in his view more disturbing life cycles in real biology. [32] He identifies parallels include the placing of an embryo in the host; its growth in the host; the resulting death of the host; and alternating generations, as in the Digenea (trematodes). [32]

Behaviour-altering parasite

Mind-controlling parasites feature in twentieth century science fiction. In Robert A. Heinlein's 1951 The Puppet Masters , slug-like parasites from outer space arrive on Earth, fasten to people's backs and seize control of their nervous systems, making their hosts the eponymous puppets. [1] In Star Trek II: The Wrath of Khan , the Ceti eel tunnels into the ear of its human host until it reaches the brain. This is a behaviour-altering parasite analogous to Toxoplasma gondii , which causes infected mice to become unafraid of cats. This makes them easier to catch and consume and, once an infected mouse has been eaten, the parasite will then infect the cat, its definitive host, in which it can reproduce sexually. [25] The Goa'uld in Stargate SG-1 enters through the host's neck and coils around the host's spine, assuming control. [25] [33] The Slug/Squid alien in The Hidden similarly enters via the host's mouth before taking over its body. [33]

Brood parasite

Brood parasites lay their eggs in other birds' nests for them to raise, inspiring the science fiction novel The Midwich Cuckoos. Eastern Phoebe-nest-Brown-headed-Cowbird-egg.jpg
Brood parasites lay their eggs in other birds' nests for them to raise, inspiring the science fiction novel The Midwich Cuckoos .

Brood parasitism is not a common theme in fiction. An early example was John Wyndham's 1957 novel The Midwich Cuckoos , which sees the women of an English village give birth to and then bring up a group of alien children. The aliens are telepathic, and intend to take over the world. In nature, brood parasitism occurs in birds such as the European cuckoo, which lay their eggs in the nests of their hosts. The young cuckoos hatch quickly and eject the host's eggs or chicks; the host parents then feed the young cuckoos as if they were their own offspring, until they fledge. As a plot device, this allows aliens and humans to interact closely. [13] [34] [35] A somewhat similar approach is taken in Octavia E. Butler's 1987–1989 Lilith's Brood , but the offspring born to the human mother there is an alien-human hybrid rather than simply an alien. [36] [37]

Parasitic castrator

Sacculina, a parasitic castrator (highlighted), inspired Philip Fracassi's novella of that name. Sacculina carcini.jpg
Sacculina , a parasitic castrator (highlighted), inspired Philip Fracassi's novella of that name.

Parasitic castration is found in nature in greatly reduced parasites that feed on the gonads of their crab hosts, making use of the energy that would have gone into reproduction. It is seen in fiction in Philip Fracassi's 2017 horror novella Sacculina, named for a genus of barnacle-like crustaceans with this lifestyle. [38] [39] It tells the tale of a chartered fishing boat, far from home, that is overrun by parasites from the deep. [40]

Trophically-transmitted parasite

Pork tapeworm, an intestinal parasite transmitted via human faeces to pigs, and back to humans via inadequately-cooked meat Taenia solium.jpg
Pork tapeworm, an intestinal parasite transmitted via human faeces to pigs, and back to humans via inadequately-cooked meat

The genetically engineered tapeworm in Mira Grant's novel Parasite, and the talking tapeworm in Irvine Welsh's novel Filth, are fictional versions of conventional intestinal parasites. [14] [22] Tapeworms have complex life-cycles, often involving two or more hosts of different species, and are transmitted as the eggs are passed in faeces and eaten by another host, only for the host to be eaten, passing the parasite on to the predator. [41] The unattractive lifecycle allows the novelists to exploit their readers' emotional reactions to the parasites. The parasite in Welsh's novel has been described as a "kind of sinister but strangely comic element". [21]

See also

Related Research Articles

<span class="mw-page-title-main">Parasitism</span> Relationship between species where one organism lives on or in another organism, causing it harm

Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The entomologist E. O. Wilson characterised parasites as "predators that eat prey in units of less than one". Parasites include single-celled protozoans such as the agents of malaria, sleeping sickness, and amoebic dysentery; animals such as hookworms, lice, mosquitoes, and vampire bats; fungi such as honey fungus and the agents of ringworm; and plants such as mistletoe, dodder, and the broomrapes.

<span class="mw-page-title-main">Cuckoo</span> Family of birds

Cuckoos are birds in the Cuculidae family, the sole taxon in the order Cuculiformes. The cuckoo family includes the common or European cuckoo, roadrunners, koels, malkohas, couas, coucals, and anis. The coucals and anis are sometimes separated as distinct families, the Centropodidae and Crotophagidae, respectively. The cuckoo order Cuculiformes is one of three that make up the Otidimorphae, the other two being the turacos and the bustards. The family Cuculidae contains 150 species, which are divided into 33 genera.

<span class="mw-page-title-main">Host (biology)</span> Organism that harbours another organism

In biology and medicine, a host is a larger organism that harbours a smaller organism; whether a parasitic, a mutualistic, or a commensalist guest (symbiont). The guest is typically provided with nourishment and shelter. Examples include animals playing host to parasitic worms, cells harbouring pathogenic (disease-causing) viruses, or a bean plant hosting mutualistic (helpful) nitrogen-fixing bacteria. More specifically in botany, a host plant supplies food resources to micropredators, which have an evolutionarily stable relationship with their hosts similar to ectoparasitism. The host range is the collection of hosts that an organism can use as a partner.

<span class="mw-page-title-main">Parasitoid</span> Organism that lives with its host and kills it

In evolutionary ecology, a parasitoid is an organism that lives in close association with its host at the host's expense, eventually resulting in the death of the host. Parasitoidism is one of six major evolutionary strategies within parasitism, distinguished by the fatal prognosis for the host, which makes the strategy close to predation.

<span class="mw-page-title-main">Kleptoparasitism</span> Type of animal feeding strategy

Kleptoparasitism is a form of feeding in which one animal deliberately takes food from another. The strategy is evolutionarily stable when stealing is less costly than direct feeding, such as when food is scarce or when victims are abundant. Many kleptoparasites are arthropods, especially bees and wasps, but including some true flies, dung beetles, bugs, and spiders. Cuckoo bees are specialized kleptoparasites which lay their eggs either on the pollen masses made by other bees, or on the insect hosts of parasitoid wasps. They are an instance of Emery's rule, which states that insect social parasites tend to be closely related to their hosts. The behavior occurs, too, in vertebrates including birds such as skuas, which persistently chase other seabirds until they disgorge their food, and carnivorous mammals such as spotted hyenas and lions. Other species opportunistically indulge in kleptoparasitism.

<span class="mw-page-title-main">Supernormal stimulus</span> Concept in biology and psychology

A supernormal stimulus or superstimulus is an exaggerated version of a stimulus to which there is an existing response tendency, or any stimulus that elicits a response more strongly than the stimulus for which it evolved.

<span class="mw-page-title-main">Brood parasitism</span> Subclass of parasitism, phenomenon that an animal relies on other inidivids to raise its young.

Brood parasitism is a subclass of parasitism and phenomenon and behavioural pattern of certain animals, brood parasites, that rely on others to raise their young. The strategy appears among birds, insects and fish. The brood parasite manipulates a host, either of the same or of another species, to raise its young as if it were its own, usually using egg mimicry, with eggs that resemble the host's.

<span class="mw-page-title-main">Xenomorph</span> Fictional extraterrestrial species from the Alien film series

The Xenomorph is a fictional endoparasitoid extraterrestrial species that serves as the title antagonist of the Alien and Alien vs. Predator franchises. The species made its debut in the film Alien (1979) and reappeared in the sequels Aliens (1986), Alien 3 (1992), and Alien Resurrection (1997). The species returns in the prequel series, first with a predecessor in Prometheus (2012) and a further evolved form in Alien: Covenant (2017). It also featured in the crossover films Alien vs. Predator (2004) and Aliens vs. Predator: Requiem (2007), with the skull and tail of one of the creatures respectively appearing briefly in Predator 2 (1990) and The Predator (2018), as a protagonist in the video game Aliens vs. Predator (2010), and will return in the upcoming FX television series Alien (TBA). In addition, the Xenomorph appears in various literature and video game spin-offs from the franchises.

<span class="mw-page-title-main">Hyperparasite</span> Parasite of another parasite

A hyperparasite, also known as a metaparasite, is a parasite whose host, often an insect, is also a parasite, often specifically a parasitoid. Hyperparasites are found mainly among the wasp-waisted Apocrita within the Hymenoptera, and in two other insect orders, the Diptera and Coleoptera (beetles). Seventeen families in Hymenoptera and a few species of Diptera and Coleoptera are hyperparasitic. Hyperparasitism developed from primary parasitism, which evolved in the Jurassic period in the Hymenoptera. Hyperparasitism intrigues entomologists because of its multidisciplinary relationship to evolution, ecology, behavior, biological control, taxonomy, and mathematical models.

An obligate parasite or holoparasite is a parasitic organism that cannot complete its life-cycle without exploiting a suitable host. If an obligate parasite cannot obtain a host it will fail to reproduce. This is opposed to a facultative parasite, which can act as a parasite but does not rely on its host to continue its life-cycle. Obligate parasites have evolved a variety of parasitic strategies to exploit their hosts. Holoparasites and some hemiparasites are obligate.

<span class="mw-page-title-main">Eucharitidae</span> Family of wasps

The Eucharitidae are a family of parasitic wasps. Eucharitid wasps are members of the superfamily Chalcidoidea and consist of three subfamilies: Oraseminae, Eucharitinae, and Gollumiellinae. Most of the 55 genera and 417 species of Eucharitidae are members of the subfamilies Oraseminae and Eucharitinae, and are found in tropical regions of the world.

<span class="mw-page-title-main">Horsfield's bronze cuckoo</span> Species of bird

Horsfield's bronze cuckoo is a small cuckoo in the family Cuculidae. Its size averages 22g and is distinguished by its green and bronze iridescent colouring on its back and incomplete brown barring from neck to tail. Horsfield's bronze cuckoo can be destiguished from other bronze cuckoos by its white eyebrow and brown eye stripe. The Horsfield's bronze cuckoo is common throughout Australia preferring the drier open woodlands away from forested areas.

<span class="mw-page-title-main">Screaming cowbird</span> Species of bird

The screaming cowbird is an obligate brood parasite belonging to the family Icteridae and is found in South America. It is also known commonly as the short billed cowbird.

<span class="mw-page-title-main">Egg tossing (behavior)</span>

Egg tossing or egg destruction is a behavior observed in some species of birds where one individual removes an egg from the communal nest. This is related to infanticide, where parents kill their own or other's offspring. Egg tossing is observed in avian species, most commonly females, who are involved with cooperative breeding or brood parasitism. Among colonial non-co-nesting birds, egg-tossing is observed to be performed by an individual of the same species, and, in the case of brood parasites, this behavior is done by either the same or different species. The behavior of egg tossing offers its advantages and disadvantages to both the actor and recipient.

<span class="mw-page-title-main">Wasp</span> Group of insects

A wasp is any insect of the narrow-waisted suborder Apocrita of the order Hymenoptera which is neither a bee nor an ant; this excludes the broad-waisted sawflies (Symphyta), which look somewhat like wasps, but are in a separate suborder. The wasps do not constitute a clade, a complete natural group with a single ancestor, as bees and ants are deeply nested within the wasps, having evolved from wasp ancestors. Wasps that are members of the clade Aculeata can sting their prey.

<span class="mw-page-title-main">Parasitic castration</span> One strategy of parasitism

Parasitic castration is the strategy, by a parasite, of blocking reproduction by its host, completely or in part, to its own benefit. This is one of six major strategies within parasitism.

<i>Cotesia glomerata</i> Species of wasp

Cotesia glomerata, the white butterfly parasite, is a small parasitoid wasp belonging to family Braconidae. It was described by Carl Linnaeus in his 1758 publication 10th edition of Systema Naturae.

<i>Loxothylacus panopaei</i> Species of barnacle

Loxothylacus panopaei is a species of barnacle in the family Sacculinidae. It is native to the Gulf of Mexico and the Caribbean Sea. It is a parasitic castrator of small mud crabs in the family Panopeidae, mostly in the Gulf of Mexico, the Caribbean Sea and the eastern Atlantic Ocean.

<span class="mw-page-title-main">Biology in fiction</span> Overview of biology used in fiction

Biology appears in fiction, especially but not only in science fiction, both in the shape of real aspects of the science, used as themes or plot devices, and in the form of fictional elements, whether fictional extensions or applications of biological theory, or through the invention of fictional organisms. Major aspects of biology found in fiction include evolution, disease, genetics, physiology, parasitism and symbiosis (mutualism), ethology, and ecology.

The mafia hypothesis posits that brood parasite eggs are accepted by the host out of fear of retaliation from the brood parasite, in an example of coevolution.

References

  1. 1 2 "Parasitism and Symbiosis". The Encyclopedia of Science Fiction. 10 January 2016.
  2. 1 2 3 4 5 6 7 8 9 Guarino, Ben (19 May 2017). "Disgusting 'Alien' movie monster not as horrible as real things in nature". The Washington Post .
  3. 1 2 Glassy, Mark C. (2005). The Biology of Science Fiction Cinema. McFarland. pp. 186 ff. ISBN   978-1-4766-0822-8.
  4. 1 2 Moisseeff, Marika (23 January 2014). "Aliens as an Invasive Reproductive Power in Science Fiction". HAL Archives-Ouvertes: 239.
  5. 1 2 Williams, Robyn; Field, Scott (27 September 1997). "Behaviour, Evolutionary Games and .... Aliens". Australian Broadcasting Corporation . Retrieved 30 November 2017.
  6. Poulin, Robert (2007). Evolutionary Ecology of Parasites. Princeton University Press. pp.  4–5. ISBN   978-0-691-12085-0.
  7. Wilson, Edward O. (2014). The Meaning of Human Existence. W. W. Norton & Company. p. 112. ISBN   978-0-87140-480-0. Parasites, in a phrase, are predators that eat prey in units of less than one. Tolerable parasites are those that have evolved to ensure their own survival and reproduction but at the same time with minimum pain and cost to the host.
  8. Playfair, John (2007). Living with Germs: In health and disease. Oxford University Press. p. 19. ISBN   978-0-19-157934-9. Playfair is comparing the popular usage to a biologist's view of parasitism, which he calls (heading the same page) "an ancient and respectable view of life".
  9. Matyszak, Philip (2017). 24 Hours in Ancient Rome: A Day in the Life of the People Who Lived There. Michael O'Mara. p. 252. ISBN   978-1-78243-857-1.
  10. Damon, Cynthia (1997). "5". The Mask of the Parasite: A Pathology of Roman Patronage. University of Michigan Press. p. 148. ISBN   978-0-472-10760-5. A satirist seeking to portray client misery naturally focuses on the relationship with the greatest dependency, that in which a client gets his food from his patron, and for this the prefabricated persona of the parasite proved itself extremely useful.
  11. 1 2 3 Jajszczok, Justyna (2017). The Parasite and Parasitism in Victorian Science and Literature (PDF). University of Silesia (dissertation). Retrieved 10 June 2018.
  12. 1 2 Hutchison, Sharla; Brown, Rebecca A. (2015). Monsters and Monstrosity from the Fin de Siècle to the Millennium: New Essays. McFarland. pp. 2–12. ISBN   978-1-4766-2271-2.
  13. 1 2 3 4 5 6 7 Westfahl, Gary (2005). The Greenwood Encyclopedia of Science Fiction and Fantasy: Themes, Works, and Wonders. Greenwood Publishing. pp. 586–588. ISBN   978-0-313-32952-4.
  14. 1 2 Valentine, Genevieve (30 October 2013). "Medical Magic Leads To Terror In 'Parasite'". National Public Radio . Retrieved 15 June 2018.
  15. 1 2 Loguidice, Bill; Matt Barton (2014). Vintage Game Consoles: An Inside Look at Apple, Atari, Commodore, Nintendo, and the Greatest Gaming Platforms of All Time. CRC Press. p. 191. ISBN   978-1-135-00651-8.
  16. Tate, Karl (24 May 2012). "Invasion of the Alien Space Parasites". LiveScience. Retrieved 16 June 2018.
  17. Hughes, Rob (3 April 2014). "SA-Xcellent". IGN. Archived from the original on August 17, 2014. Retrieved June 13, 2014.
  18. Timmis, Jeremy N.; Ayliffe, Michael A.; Huang, Chun Y.; Martin, William (2004). "Endosymbiotic gene transfer: organelle genomes forge eukaryotic chromosomes". Nature Reviews Genetics. 5 (2): 123–135. doi:10.1038/nrg1271. PMID   14735123. S2CID   2385111.
  19. Taanman, Jan-Willem (1999). "The mitochondrial genome: structure, transcription, translation and replication". Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1410 (2): 103–123. doi:10.1016/S0005-2728(98)00161-3. PMID   10076021.
  20. Lynch, Lisa (5 September 2001). "Tech Flesh 4: Mitochodrial Combustion at Club Parasite | An Interview With Hideaki Sena". Ctheory journal. p. tf011. Retrieved 16 June 2018.
  21. 1 2 Ford, Matt (11 September 2013). "Irvine Welsh: The 'unfilmable' Filth finally makes it to the big screen" . The Independent . Archived from the original on 2022-05-25. Retrieved 17 June 2018.
  22. 1 2 3 Marren, Peter; Mabey, Richard (2010). Bugs Britannica. Chatto & Windus. pp. 34–36. ISBN   978-0-7011-8180-2.
  23. Munkittrick, Kyle (12 July 2011). "The Only Sci-Fi Explanation of Hominid Aliens that Makes Scientific Sense". Discover Magazine. Retrieved 16 June 2018.
  24. Pappalardo, Joe (31 December 2013). "The 10 Best Sci-Fi Movies—As Chosen By Scientists". Popular Mechanics . Retrieved 16 June 2018.
  25. 1 2 3 4 Pappas, Stephanie (29 May 2012). "5 Alien Parasites and Their Real-World Counterparts". LiveScience.
  26. Hurwitz, Siegmund (1992) [1980]. Gela Jacobson (trans.) (ed.). Lilith, the First Eve: Historical and Psychological Aspects of the Dark Feminine. Daimon Verlag. ISBN   978-3-85630-522-2.
  27. Meehan, Paul (2014). The Vampire in Science Fiction Film and Literature. McFarland. pp. 209–. ISBN   978-1-4766-1654-4.
  28. Budanovic, Nikola (10 March 2018). "An explanation emerges for how the 12th century Paisley Abbey in Scotland could feature a gargoyle out of the film "Alien"". The Vintage News. Retrieved 17 June 2018.
  29. "'Alien' gargoyle on ancient Paisley Abbey". British Broadcasting Corporation. 23 August 2013. Retrieved 17 June 2018.
  30. 1 2 3 Sercel, Alex (19 May 2017). "Parasitism in the Alien Movies". Signal to Noise Magazine.
  31. "The Making of Alien's Chestburster Scene". The Guardian . 13 October 2009. Archived from the original on 30 April 2010. Retrieved 29 May 2010.
  32. 1 2 Dove, Alistair (9 May 2011). "This is clearly an important species we're dealing with". Deep Sea News.
  33. 1 2 Elrod, P. N.; Conrad, Roxanne; Terry, Fran (2015). Help! The aliens have landed and taken over my brain. BenBella Books. pp. 59–72. ISBN   978-1-941631-51-5.{{cite book}}: |work= ignored (help)
  34. Adams, Stephen (4 January 2009). "Cuckoo chicks dupe foster parents from the moment they hatch". The Daily Telegraph. Archived from the original on February 13, 2009. Retrieved 17 June 2018.
  35. Fromme, Alison (January 2018). "This Baby Bird Is a Mother's Nightmare". National Geographic . Archived from the original on January 11, 2018. Retrieved 17 June 2018.
  36. Beshero-Bondar, Elisha (2 November 2017). "Science Fiction and Lilith's Brood". Slideshare.net. Retrieved 26 July 2018.
  37. Holden, Rebecca J. (1998). "The High Costs of Cyborg Survival: Octavia Butler's Xenogenesis Trilogy". Foundation – The International Review of Science Fiction . 72 (Spring 1998): 49–57.
  38. Lafferty, Kevin D.; Armand M. Kuris (2009). "Parasitic castration: the evolution and ecology of body snatchers". Trends in Parasitology . 25 (12): 564–572. doi:10.1016/j.pt.2009.09.003. PMID   19800291.
  39. Poulin, Robert (2007). Evolutionary Ecology of Parasites (2nd ed.). Springer. pp.  106, 111–114. ISBN   978-0-691-12084-3.
  40. "Sacculina by Philip Fracassi: A Gehenna Post Review". Gehenna and Hinnom Publishers. 28 September 2017. Retrieved 16 June 2018.
  41. "Parasites – Taeniasis". Centers for Disease Control and Prevention. 10 January 2013. Retrieved 17 June 2018.