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 ...

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 ...

Fluorescent anatomy, which recently seemed to be a quirk in unusual animals such as platypuses and opossums, was found in most living families of mammals. By Cara Giaimo At first, it seemed to be ...

The identification of a key gene in monotremes has increased our understanding of why the stomachs of platypuses and echidnas ...

See 3-D models of animal anatomy from openVertebrate’s public collection. More than 13,000 museum specimens were CT scanned as part of a six-year-long project ...

They’re monotremes, or egg-laying mammals; ... That’s possible because echidnas’ erectile tissue anatomy differs from most other mammals’, Australian scientists reported in a 2021 study.

It involved a major reorganization of limb anatomy and function in synapsids -- the group that includes both mammals and their non-mammalian ancestors -- eventually leading to the therian mammals ...