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 ...

3D models of the jaw and associated middle ear bones of the Triassic mammal ancestor "Thrinaxodon" show that the switch to mammal-like hearing with an eardrum evolved much earlier than previously ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Two brand-new species of early mammals from the Jurassic period have ...

Mammals, including humans, stand out with their distinctively upright posture, a key trait that fueled their spectacular evolutionary success. Yet, the earliest known ancestors of modern mammals more ...

You can’t make a mammal-ette without laying some eggs. The duck-billed platypus wasn’t the only mammal to lay eggs. Analysis of a fossil in South Africa proves that our mammalian ancestors were ...

NEW YORK — Maybe you learned this in school: The big dinosaur die-off 65 million years ago was a liberation for mammals, and they quickly produced a bunch of new species that included ancestors of ...

Reconstruction of the appearance in life of a gorgonopsian in a floodplain of the Permian of Mallorca (Henry Sutherland Sharpe via Courthouse News) (CN) — Mallorca in Spain’s Balearic Islands is well ...

Earth's earliest mammals spent their lives at a more leisurely pace than their modern counterparts, but they lived a lot longer, analysis of some 200-million-year-old teeth has shown. Earth's earliest ...