The Evolution of Crocodiles

Crocodiles have been in Australia since it broke away from Gondwana 98 million years ago. These guys can swim up to 24 to 29 kilometres per hour, that's three times faster than the fastest human can swim. Although they have incredibly small brains approximately the size of a given crocodile's largest tooth in its mouth what's astonishing is that these guys can learn difficult tasks with very little conditioning. They can also stalk and hunt their prey which can include humans over hours and even days.