A model of Microraptor being put on display at the American Museum of Natural History. Microraptor was one of the smallest known dinosaurs, weighing about one pound—roughly the size of a large rabbit.

Almost all mammals give birth rather than laying eggs, and we have new clues about when they began to do so ...

Some cynodonts may have been giving birth to live young much sooner in evolutionary history than previously assumed. A new ...

Successful navigation of the social environment depends on the ability to rapidly evaluate conspecifics and adjust behaviour accordingly. Encounters with unfamiliar individuals are particularly ...

This work describes a valuable method for monitoring pathogens using an innovative, field-deployable device that attracts animals and collects saliva on filter paper in a non-invasive manner. While ...