When I got my first look at Boulenger’s backpack frog, I thought the poor thing was suffering from the world’s most unpleasant skin disease. The frog in this video appears to be wearing a cluster of ...

The African clawed frog is used as a model organism for biological research because of its close evolutionary relationship to humans, and because early development occurs externally, allowing ...

The development of hair was of central importance for the evolution of mammals and, thus, also of humans. However, the evolutionary origin of the genetic program of hair was previously unknown. An ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Paleontologists working in Patagonia have unearthed the oldest-known ...

Amphibians bounced back spectacularly from a series of mass extinctions during their evolution, according to a new genetic analysis. In the present day, biologists see amphibians as sentinels of ...

A brilliantly orange frog small enough to sit on your fingernail spent years hiding from scientists in plain sight deep in the Brazilian rainforest. Its discovery reveals something surprising about ...

Australian tree frogs today make up over one third of all known frog species on the continent. Among this group, iconic species such as the green tree frog (Litoria caerulea) and the green and golden ...

Congratulations, you’ve experienced iridescence – a dazzling optical phenomenon that can be seen in many kinds of wildlife. It’s most famous among birds and certain insects, but a new iridescent icon ...