Creatures of the Ice

Any creature that survived the cataclysmic events at the end of the Cretaceous lived in a time of great opportunity. All the large predators and herbivores had been wiped off the face of the Earth. The remaining reptiles - Lizards, snakes, turtle and small crocodiles - carried on much as they had before. However, small, adaptle creatures that had until then spent much of their lives in hiding were suddenly presented with the opportunity to inherit the Earth. This Tertiary era, the third age of life on the Earth, has been the age of the mammals and the birds.

picture of Tertiary Era