Some sloth species are endangered while others are "of least concern," according to the World Wildlife Federation. Two sloths fall into the endangered category: the maned sloth and the pygmy sloth. Efforts are being made... More »

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Bradypus pygmaeus, known as pygmy three-toed sloth, is a critically endangered species because of human threats and predators. They are endemic to Isla Escudo de Veraguas, an island in Panama that is protected as a wildl... More »

Three-toed sloths are endangered because of the deforestation of the rainforests, which are the sloths' natural habitat. The three-toed sloth depends upon the rainforests of Central and South America for protection and f... More »

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The white rhinoceros is native to Africa and ranks as the second largest land-dwelling mammal, according to the World Wildlife Federation. As of 2014, only four northern white rhinos exist in the wild in the Democratic R... More »

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Sloths move slowly because of their herbivorous diet, slow metabolism and small muscle mass. Sloths are able to move fast, but they have to burn an enormous amount of energy in order to do so. The sloth diet lacks fats a... More »

Bradypus pygmaeus, known as pygmy three-toed sloth, is a critically endangered species because of human threats and predators. They are endemic to Isla Escudo de Veraguas, an island in Panama that is protected as a wildl... More »

Sloths are slow because they have extremely low metabolic rates. In other words, they have very little energy and move slowly in order to conserve the energy that is available. This is due in part to their herbivorous di... More »

www.reference.com Pets & Animals Mammals