Seventy-three million years ago, in Alaska's dark and frozen landscape, a group of small, rodent-like creatures was quietly ...

Today’s mammals are the product of 200 million years of evolution, but scientists aren’t sure exactly how features of modern mammals came to be. A twin pair of studies published in the journal tackles ...

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 ...

From butterflies to blue whales, corals and worms, Earth is home to an incredible diversity of animals. How all of these ...

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An artist's impression of the shrew-like Krusatodon kirtlingtonensis, which a new study suggests lived long and matured slowly, in contrast to modern small mammals. Maija Karala Roughly 166 million ...

A recent series of studies suggests that the brains of birds, reptiles and mammals all evolved independently — even though they share a common ancestor. This process, where different species ...

June 21 (Reuters) - More than 250 million years ago, Scotland was not veiled in mist and rain, as it often is today, but rather a desert blanketed in sand dunes. One of the denizens of this ...

Sensitive hearing may have evolved in mammal ancestors far earlier than scientists once believed. By modeling how sound moved through the skull of Thrinaxodon, a 250-million-year-old mammal ...

One of the most important steps in the evolution of modern mammals was the development of highly sensitive hearing. The middle ear of mammals, with an eardrum and several small bones, allows us to ...

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 ...

One of the most important steps in the evolution of modern mammals was the development of highly sensitive hearing. The middle ear of mammals, with an eardrum and several small bones, allows us to ...