Biologists have debated the reason why Homo sapiens evolved a prominent lower jaw, but this unique feature may actually be a by-product of other traits shaped by natural selection ...

There aren't any native lion or tiger populations living in Japan today, but this was not always the case. Fossil evidence indicates that at least one species of large cat roamed the archipelago ...

“This is one of the oldest known four-legged animals to eat its veggies,” said Arjan Mann of the Field Museum in Chicago, a co-lead author of the study. “It shows that experimentation with herbivory ...