A fossil bed in China containing animals up to 554 million years old suggests that we may have to reconsider the idea that ...

When the environment changes dramatically, animals from mollusks to crows can make big changes in their behavior that enable ...

A reconstructed dinosaur skull reveals a new Triassic species and suggests early dinosaurs may have gone extinct in the ...

A fossil assemblage from China’s Yunnan province suggests animal life diversified in the Ediacaran Period earlier than ...

Animal life began in aquatic environments more than 600 million years ago. Around 500 million years ago, during the Cambrian ...

Newly discovered fossils have given scientists their first real glimpse of when Earth made a crucial transition from plants ...

The discovery of why some birds emit more heat than others can be used for both conservation and the creation of ...

The evolutionary origin of sperm can be traced back to a single-celled ancestor of all living animals. Almost all animals reproduce by having a single-celled stage of their life cycle, involving two ...