Fossilized skeletons and shells clearly show how evolution and extinction unfolded over the past half a billion years, but a new analysis extends the chart of life to nearly 2 billion years ago. The ...

If all the world's a stage and all the species merely players, then their exits and entrances can be found in the rock record ...

We all learned about the food chain in school, but Mufasa taught us what we really needed to know: We're all part of the circle of life ... If just these critical species went extinct, we'd ...

The various Ensatina salamanders of the Pacific coast all descended ... complete circle, he finds himself an entire floor above where he started. A well-studied example of a ring species is ...

All plants and animals follow the life cycle of their species. Some are short and some ... It explores common animal life cycles and shows how the ‘circle of life’ operates in nature.

Every year, the Okavango River brings an infusion of crystal clear, life-giving water into an otherwise ... an oasis supporting many rare and iconic species. In Botswana, the cycle is prosperous ...