Odd-toed ungulate
order of mammals From Wikipedia, the free encyclopedia
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Odd-toed ungulates are the Perissodactyla, an order of mammals.
Odd-toed ungulates have an uneven number of toes: Horses have only one toe, rhinoceros have three toes, and tapirs have four toes on the front feet and three toes on the hind feet.
Their digestive system is more basic than the even-toed ungulates. A key difference between the two is that odd-toed ungulates digest plant cellulose in their intestines rather than in one or more stomach chambers as the even-toed ungulates do.
Horses, for example, get much less nutrition out of grass than bovines do. This has the consequence that horses have to stop and feed more often, which in turn makes them more liable to predators. However, horses are very well-adapted for running, more so than many oxen or other Artiodactyls.
The living ungulates are a much-reduced group: the horses (including zebras), the tapirs and the rhinoceros.[1]
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Taxonomy
- Order Perissodactyla
- Family Rhinocerotidae
- Family Tapiridae
- Family Equidae
References
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