If textbooks ever made you believe mammals like humans, cats, and kangaroos first evolved somewhere up north, think again. A remarkable discovery from Australia has flipped our understanding of mammal ...

Add Yahoo as a preferred source to see more of our stories on Google. an illustration of a black rodent-like early mammal with a membrane like a flying squirrel flying through a forest The new ...

A study of fossil teeth from China shows early mammals got bigger before their diets became specialized after the ...