Some were the size of a dog. Others were as large as polar bears. A newly-discovered fossil of the ferocious hyaenodont is ...

In "Prehistoric World: Over 1,200 Incredible Mammals and Discoveries from the Mesozoic and Cenozoic," readers will learn about the warm-blooded animals that rose to prominence once the dinosaurs ...

Eberle had identified previous prehistoric mammals through teeth, which are sometimes all that's left from mammals during ...

Deep within the limestone cliffs of Majorca, scientists have uncovered a 270-million-year-old fossil that challenges our ...

Scientists in Spain have uncovered a 270-million-year-old fossil of a Gorgonopsian, a predator linking reptiles and mammals.

From the top of Shifting Sands dune in the Serengeti Plain of Africa a million mammals are in motion. Wildebeests. Zebras. Gazelles. The plain is black with them. It is wildebeest calving season ...

However, there were also other incredible prehistoric animals ... larger versions of their living relatives. The rise of mammals The earliest known mammals first appeared about 225 to 200 million ...

In mapping out the prehistoric environment ... was not depending on a highly seasonal availability of their large mammal prey in contrast to the Middle Stone Age period. Moreover, the migratory ...