The genes that build the cartilage of fish gills were repurposed to build the cartilage in mammals’ outer ears ...

A museum curator with a ladder showed that birds that build cavity-style nests are able to protect their eggs with the skin ...

A Proceedings of the Royal Society B study of 5,600 mammals found that two species will never return to dry land.

Mammals have exceptional hearing. Using echolocation, bats can detect tiny insects flying in pitch-black darkness. Elephants can recognize the calls of their companions from roughly a mile away. And ...

To function through adulthood, permanent teeth need ongoing care, including brushing, flossing, and cleanings. Plus, dental ...

Predators and prey in the ocean rely on chemical signals for survival, but this vital sensory mode can also be their Achilles ...

Finally, birds and mammals belong to a richly branching part of the vertebrate phylogenetic tree, most of the branches being grouped as reptiles, while two equivalent branches are given unequal ...

When a bird drapes its nest with snake skin, it isn't just making an interesting home décor choice. For some birds, it keeps ...

Dinosaurs likely originated in the low-latitude regions of Gondwana near the equator, evolving over millions of years.

When you’re warm and cozy inside, it can be natural to wonder if the animals you see outside your window this winter are ...

The story of mammalian evolution is a tale of transformation, adaptation, and survival against the odds. It begins over 300 ...

Scientists have traced the evolutionary origin of humans' outer ears to the gills of ancient fish through a series of ...