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Chevrotains, or mouse-deer, are diminutive, even-toed ungulates that make up the family Tragulidae, and are the only living members of the infraorder Tragulina. The 10 extant species are placed in three genera, [ 1 ] [ 2 ] but several species also are known only from fossils . [ 3 ]
Peromyscus is a genus of rodents.They are commonly referred to as deer mice or deermice, not to be confused with the chevrotain or "mouse deer". They are New World mice only distantly related to the common house and laboratory mouse, Mus musculus.
Like the North American deer mouse, this species may carry hantaviruses, which can cause severe illness in humans. It has also been found to be a competent reservoir for the Lyme disease–causing spirochete, Borrelia burgdorferi. [8] The white-footed mouse is the favored host for the parasitic botfly Cuterebra fontinella. [9]
The California deermouse has very large ears, and its tail is longer than the head and body combined. Including the tail, which is about 117 to 156 mm (4.6 to 6.1 in) long, the mouse ranges in length from 220 to 285 mm (8.7 to 11.2 in). [6] The coat is overall orange, mixed with black and brown hairs.
The mouse genome has been sequenced, and virtually all mouse genes have human homologs. The mouse has approximately 2.7 billion base pairs and 20 pairs of chromosomes. [12] They can also be manipulated in ways that are illegal with humans, although animal rights activists often object. A knockout mouse is a genetically modified mouse that has ...
The greater mouse-deer is an even-toed ungulate. Although very small for an ungulate, the greater mouse-deer is one of the largest members of its genus. It is rivalled in size by Williamson's mouse-deer. It weighs 5 to 8 kg (11 to 18 lb). Its head-and-body length is 70 to 75 cm (2.30 to 2.46 ft) and its tail length is 8 to 10 cm (3.1 to 3.9 in).
P. sonoriensis is a short-tailed deermouse with a distinctive white underside and white feet. Their coat color ranges from fulvous to brownish. They can be mistaken for the eastern deer mouse, which is indistinguishable except by range, or for the white-footed mouse, which has a tail with indistinct bicoloring.
It has an average tail length of about 5 cm (2.0 in). Mouse-deer are thought to be the most primitive ruminants based on their behaviour and the fossil record, thus they are the living link between ruminants and non-ruminants. [12] [11] The Java mouse-deer is endothermic and homoeothermic, and has an average basal metabolic rate of about 4.883 ...