At a site known as Natural Trap Cave, a team of scientists are rappelling down to uncover the secrets of what the Earth was ...

F. FLINT'S distinguished work in the broad field of glacial geology has been prominent for a generation, and his book is important for that and for other reasons. It deals with the Pleistocene ...

The horse originated in North America around four million years ago. As changing sea levels created land bridges between ...

That ecosystem existed in a wide range of climates and survived several glaciation cycles. "The idea of the Pleistocene Park is to reverse the ecosystem transformation that happened 10,000 years ago.