RODENTS AND CREODONTS
Rodents make up almost half of all the living mammal species and first appeared as squirrel-like
creatures some 60 million years ago. Creodonts were the main carnivorous mammals from about 60 to
30 million years ago. Different types looked like bears, wolves, cats and hyaenas. However, they had all
but faded away by 10 million years ago, to be succeeded by the Carnivora of today.