Slowest Mammal in The World Sloth
The exact number of mammals is not known yet. However, it is estimated that there are more than 4500 mammal species in the world. They exist is different forms in different habitats. Some of the known mammals groups are cetaceans, rodents, bats, primates, marsupials, ungulates, elephants and carnivores. Human beings also included in the list.
It is considered that the diversification of mammals occurred during the Cenozoic era which is dated 65 million years before. Since then, mammals dominated over all other classes in the Animal Kingdom due to its wide range of sizes, forms and adaptations. The largest animal in the world is recorded as Blue whale which is also the world’s largest mammal. Bumblebee bat is the smallest mammal which measures just one inch long and 2 grams weight.
The nature’s laziest and slowest mammal is sloth which resides in the tropical forests of Central and South America. It spends most times in tree branches and moves down to ground once in a week. The sloth holds all the basic characteristics as a mammal. It has rigid brown hair throughout its body. It has long claws which are used as hooks to grip on the branches.
Sloths move very slowly that it takes more than an hour to cover a kilometer. Two types of sloths are known namely, two toed sloth and three toed sloth. The latter is even slower than the former one. According to the naturalist William Beebe, sloths spend 18 hours slowly moving, 10 hours relaxing, 11 hours eating and 129 hours sleeping all in a single week. Even if fired a gun somewhere beside, all sloths would do is slowly turn back and blink!The ancestry of sloths is unknowns as there are no evidences of their evolution. Most scientists do not claim that sloths evolved at all. They were created from the beginning.