Discover more about the egg-laying monotremes of Oceania and the ancient traits they still carry.

Evolution takes some weird twists and turns to bring animals to their current forms. While evolution is based on random mutations and passing on traits that aid in survival, that does not mean that a ...

In the natural world—where predators pounce, prey flee, and group members feed and sleep in solidarity—animal behavior is glorious in its variety. Now, new research suggests there may be an underlying ...

Horses have developed long faces simply 'because they can,' a team of evolutionary biologists say. In a major review of how mammalian heads evolve, scientists found that adaptations to feeding explain ...

A group of scientists studying pregnancy across six different mammals—from humans to marsupials—uncovered how certain cells at the mother-baby boundary have been working together for over 100 million ...