Search results
Results from the WOW.Com Content Network
In terrestrial vertebrates, digitigrade (/ ˈ d ɪ dʒ ɪ t ɪ ˌ ɡ r eɪ d /) [1] locomotion is walking or running on the toes (from the Latin digitus, 'finger', and gradior, 'walk'). A digitigrade animal is one that stands or walks with its toes (phalanges) on the ground, and the rest of its foot lifted.
A plantigrade foot is the primitive condition for mammals; digitigrade and unguligrade locomotion evolved later. Among archosaurs, the pterosaurs were partially plantigrade and walked on the whole of the hind foot and the fingers of the hand-wing. [1]
Sthenurinae (from Sthenurus, Greek for 'strong-tailed') is a subfamily within the marsupial family Macropodidae, known as short-faced kangaroos or sthenurine kangaroos. No members of this subfamily are extant today, with all becoming extinct by the late Pleistocene .
Red kangaroos are notorious for getting into scuffles with other roos. As Animal Planet notes, during a fight, the animals will deal out some nasty kicks while supporting all of their body weight ...
The extension of the joint helps store momentum and acts as a spring, allowing digitigrade creatures more speed. Digitigrade mammals are also often adept at quiet movement. Birds are also digitigrade. [7] Hooved mammals are known as ungulates, walking on the fused tips of their fingers and toes. This can vary from odd-toed ungulates, such as ...
For years, researchers had thought that handedness was unique to great apes, including humans, but scientists at Saint Petersburg State University in Russia have learned kangaroos possess the ...
The word kangaroo derives from the Guugu Yimithirr word gangurru, referring to eastern grey kangaroos. [14] [15] The name was first recorded as "kanguru" on 12 July 1770 in an entry in the diary of Sir Joseph Banks; this occurred at the site of modern Cooktown, on the banks of the Endeavour River, where HMS Endeavour under the command of Lieutenant James Cook was beached for almost seven weeks ...
A sifaka galloping bipedally. The sifaka (Propithecus), which is a type of lemur native to the island of Madagascar, is one of the primary examples of facultative bipedalism.