There are two species of hippopotamus – the Common Hippopotamus (also called a River Hippo) (hippopotamus amphibius) and. At birth the calf weighs between 4.5 and 6.2 kgs (9.9 - 13.7 lbs) and they can swim almost immediately. In tons, male pygmy hippopotamus weigh between 0.2 tons to 0.31 tons. the Pygmy Hippopotamus (Choeropsis liberiensis or … When mature, pygmy hippos (Hexaprotodon liberiensis) can reach weights between 352 and 605 pounds (160 to 275 kg), still 10 times lighter than normal-size hippos. Also in common with its larger relative, the pygmy hippo’s skin secretes an oily, pink fluid known as “blood sweat“.It is believed that this substance protects the hippo against water loss, … Weight: up to 300 kg. Pygmy Hippo. Due to illegal poaching, pygmy hippos are increasingly harder to spot now, with their numbers dwindling to 2000 pygmy hippos in the wild. The Pygmy Hippopotamus Vs. Cows: Female pygmy hippopotamus weigh between 160 kg to 240 kg. Their babies can put on a lot of weight quickly. In tons, female pygmy hippopotamus weigh between 0.18 tons to 0.26 tons. The hippopotamus has an average life span of about 45 years in the wild and 50 years in captivity. Weight: Up to 3000 kg Lifestyle: Lives alone in swamps, streams and dense forest. Population: Around 130,000 across Africa. Like the closely-related common hippopotamus, the pygmy hippopotamus has a stocky, rounded body and dark-colored, smooth skin. The Pygmy Hippopotamus is a medium-sized herbivorous mammal that is found inhabiting the humid forests and swamps of West Africa. Pygmy Hippos mate and give birth either on land or in the water and after a gestation period of 196 - 210 days, 1 well developed calf is born. Feet: Well-separated toes for trudging through mud. Population: Only around 3000 in a few countries in West Africa. 150-165 cm (4.9-5.4 ft) Adult pygmy hippos reach 70-80 cm in height and are believed to have diverged from the common hippo over 10 million years ago. The pygmy hippo is reclusive and nocturnal.It is one of only two extant species in the family Hippopotamidae, the other being its much larger relative, the common hippopotamus (Hippopotamus amphibius) or Nile hippopotamus.The pygmy hippopotamus displays many terrestrial adaptations, but like the hippo, it is semiaquatic and relies on water to keep its skin moist and its body temperature cool. The pygmy hippo is only half as tall as the hippopotamus and weighs less than 1/4 of a full sized hippopotamus. The Common Hippopotamus. An adult pygmy hippopotamus is 150-177 cm long, 75-83 cm tall at shoulders and they weigh from 180 to 275kg. This is about 50 times less than the number of common hippos in the wild. 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