Macroscelides proboscideus | |
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Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Macroscelidea |
Family: | Macroscelididae |
Genus: | Macroscelides |
Species: | M. proboscideus |
Binomial name | |
Macroscelides proboscideus (Shaw, 1800) | |
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Geographic range |
The round-eared elephant shrew (Macroscelides proboscideus) or round-eared sengi (called the Karoo round-eared elephant shrew to distinguish it from its sister species; [2] formerly misleadingly named the "short-eared elephant shrew"), [3] is a species of elephant shrew (sengi) in the family Macroscelididae. It is found in Botswana, Namibia, and South Africa. Its natural habitats are subtropical or tropical dry shrubland, and grassland, and hot deserts. [1] They eat insects, shoots, and roots. Their gestation period is 56 days. [4]
Elephant shrews are among only a handful of monogamous mammals, making them a model group for the study of monogamy. They have been studied for their mate guarding behavior. [5] Mate guarding is considered a predominant male trait in round-eared elephant shrews. This strategy is used to guard the female before and after heat to eliminate male competition, which makes male round-eared elephant shrews monogamous and more vulnerable to their surroundings as they spent a majority of their time dedicated to this tactic. [6]
Research was recently conducted to determine that elephant shrews are thought to have dichromatic color vision due to their ability to differentiate between blue/green colors and grey. However, there is no evidence to prove that the species can see red colors. [7]
The round-eared elephant shrew are native to Southeast Africa where the temperature ranges from 18°C to 6°C in the winter and 30°C to 22°C during the summer.
Round-eared elephant shrews are omnivores with their diet mainly consisting of insects and supplemented with plants. During the winter, this species consumes less insects than they do during the summer due to a decrease in the insect population.
The round-eared elephant shrew does not reproduce during the winter.
Elephant shrews, also called jumping shrews or sengis, are small insectivorous mammals native to Africa, belonging to the family Macroscelididae, in the order Macroscelidea. Their traditional common English name "elephant shrew" comes from a perceived resemblance between their long noses and the trunk of an elephant, and their superficial similarity with shrews in the order Eulipotyphla. However, phylogenetic analysis has revealed that elephant shrews are not properly classified with true shrews, but are in fact more closely related to elephants than to shrews. In 1997, the biologist Jonathan Kingdon proposed that they instead be called "sengis", a term derived from the Bantu languages of Africa, and in 1998, they were classified into the new clade Afrotheria.
Afrotheria is a superorder of mammals, the living members of which belong to groups that are either currently living in Africa or of African origin: golden moles, elephant shrews, otter shrews, tenrecs, aardvarks, hyraxes, elephants, sea cows, and several extinct clades. Most groups of afrotheres share little or no superficial resemblance, and their similarities have only become known in recent times because of genetics and molecular studies. Many afrothere groups are found mostly or exclusively in Africa, reflecting the fact that Africa was an island continent from the Cretaceous until the early Miocene around 20 million years ago, when Afro-Arabia collided with Eurasia.
The golden-rumped elephant shrew is a small African mammal. It is the largest species of the elephant shrew family along with its close relative the grey-faced sengi. It is classified as endangered.
The black and rufous elephant shrew, the black and rufous sengi, or the Zanj elephant shrew is one of the 17 species of elephant shrew found only in Africa. It is native to the lowland montane and dense forests of Kenya and Tanzania. Like other members of the genus Rhynchocyon, it is a relatively large species, with adults averaging about 28 cm (11 in) in length and 450–700 g (16–25 oz) in weight.
The short-snouted elephant shrew or short-snouted sengi is a species of elephant shrew in the family Macroscelididae. It is found over a wide area of Africa. Its natural habitats are dry savanna and subtropical or tropical dry lowland grassland.
Elephantulus is a genus of elephant shrew in the family Macroscelididae. It contains the following species:
The Cape elephant shrew, also known as the Cape rock elephant-shrew or Cape rock sengi, is a species of elephant shrew in the family Macroscelididae. It is endemic to South Africa, although it is a relatively common animal. Its natural habitat is rocky areas. Elephant shrews are not closely related to other species of shrews and to rodents such as mice. E. edwardii has been observed to be a non-flying mammal pollinator of the pagoda lily. Elephant shrews are floral pollinators due to their largely insectivorous diet. Elephant-shrews are pollinators of Hyobanche atropurpurea. It uses its long slender tongue to feed on the pagoda lily's nectar while getting the lily's pollen on its long nose. E. edwardii is also a pollinator of Protea sulphurea.
The bushveld elephant shrew or bushveld sengi is a species of elephant shrew in the family Macroscelididae. It is found in Angola, Botswana, Namibia, and South Africa. Its natural habitats are subtropical or tropical dry shrubland and hot deserts.
The Somali elephant shrew or Somali sengi is a species of elephant shrew in the family Macroscelididae.
The North African elephant shrew or North African sengi is a species of elephant shrew in the family Macroscelididae. It is found in Algeria, Libya, Morocco, and Tunisia, and is the only extant afrotherian within its range. The species was formerly classified in the genus Elephantulus, but molecular evidence indicates that it is more closely related to Petrodromus than to other members of Elephantulus. It was moved to a new genus, Petrosaltator, in 2016. The split with Petrodromus likely occurred during the Miocene period.
The rufous elephant shrew, rufous sengi or East African long-eared elephant-shrew is a species of elephant shrew in the family Macroscelididae. Found in Ethiopia, Kenya, Somalia, South Sudan, Tanzania and Uganda, its natural habitats are dry savanna and subtropical or tropical dry shrubland.
Macroscelides is a genus of small shrew-like animals, the round-eared sengis, found in western Namibia and in South Africa; they are members of the clade Afrotheria.
The four-toed elephant shrew or four-toed sengi is the only living species in the genus Petrodromus, which together with five other extant genera Rhynchocyon, Macroscelides, Petrosaltator, Galegeeska and Elephantulus constitutes the order Macroscelidea. This species is only found in particular regions in Africa and is smaller than its relatives. A comprehensive record of this species is lacking.
Rhynchocyon is a genus of elephant shrew in the family Macroscelididae. Members of this genus are known colloquially as the checkered elephant shrews or giant sengis. It contains the following five species:
The grey-faced sengi is a species of elephant shrew that is endemic to the Udzungwa Mountains of south-central Tanzania. The discovery of the species was announced in January 2008; only 15 species of elephant shrew were known until then, and the last discovery was made more than 120 years ago. As the name implies, the species is characterised by a distinctive grey face and a black rump, as well as being larger than the other species of elephant shrews.
The Karoo rock elephant shrew or Karoo rock sengi is an elephant shrew in the genus Elephantulus. It is found in Northern Cape Province and Western Cape Province in South Africa.
Macroscelides micus is a species of elephant shrew in the family Macroscelididae. It is only found in gravel plains in the Etendeka formation of north-west Namibia. Measuring about 7.3 inches (19 cm) long and weighing less than an ounce, the species is the smallest in the elephant shrew family.
Macroscelides flavicaudatus is a species of elephant shrew in the family Macroscelididae found in the central Namib desert and southern Namibia.