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Hippopotamus skull, showing the large canines and incisors used for fighting. The hippopotamus is a megaherbivore and is exceeded in size among land animals only by elephants and some rhinoceros species. The mean adult weight is around 1,480 kg (3,260 lb) for bulls and 1,365 kg (3,009 lb) for cows.
The Great Hippocampus Question was a 19th-century scientific controversy about the anatomy of ape and human uniqueness. The dispute between Thomas Henry Huxley and Richard Owen became central to the scientific debate on human evolution that followed Charles Darwin's publication of On the Origin of Species.
Besides elephants and rhinoceroses, hippopotamuses are the largest living land animal. Though they resemble giant pigs, their closest relatives are cetaceans like whales and porpoises. Hippos are ...
Great northern hippopotamus or Nile hippopotamus H. a. amphibius – (the nominate subspecies) which stretched from Egypt, where they are now extinct, south up the Nile River to Tanzania and Mozambique; East African hippopotamus H. a. kiboko – in Kenya in the African Great Lakes region, and in Somalia in the Horn of Africa. Broader nasals and ...
Hippopotamus creutzburgi, the Cretan dwarf hippopotamus, is an extinct species of hippopotamus from the island of Crete. It lived on the island from the Early Pleistocene to early Middle Pleistocene , and probably descended from Hippopotamus antiquus .
The Cypriot pygmy hippopotamus is the smallest known hippopotamus species, along with the roughly same-sized living African pygmy hippopotamus (Choeropsis liberiensis). The Cypriot pygmy hippopotamus is estimated to have had a body mass of around 130 kilograms (290 lb), [ 7 ] a height of 70 cm (2.3 ft) and a length of 125 cm (4.1 ft), [ 2 ] an ...
A male pygmy hippopotamus is known as a bull, a female as a cow, and a baby as a calf. A group of hippopotami is known as a herd or a bloat. [6] The pygmy hippopotamus is a member of the family Hippopotamidae where it is classified as a member of the genus Choeropsis ("resembling a hog"). Members of Hippopotamidae are sometimes known as ...
In comparison to modern Hippopotamus amphibius, the skull is more slender and elongate, but with a shorter neurocranium. [5] Hippopotamus antiquus has been suggested to have been more aquatically adapted than Hippopotamus amphibius, with the skull having more elevated eyesockets and the feet having shorter metapodial bones than H. amphibius.