Scientists today announced the discovery of the oldest fossil skeleton of a human ancestor. The find reveals that our forebears underwent a previously unknown stage of evolution more than a million years before Lucy, the iconic early human ancestor

Have you ever been curious about the companies that use the most green power? Or that are 100% powered by wind?

The New Zealand cat has defied the odds to travel 150 kilometres to be with her owner - Mary-Lee Hight - after disappearing while on a family holiday to the beach at Pauanui in New Zealand's north island last October.

A California biotechnology company has started taking orders for a hypoallergenic cat for pet lovers prone to allergies.

Fla. The news from Indian River Lagoon was too familiar: another dolphin gravely injured because of human action. But marine scientist Steve McCulloch immediately saw this rescue was unique.

Australia's cuddly national icon, the koala, faces extinction in parts of Australia within a decade as development destroys the marsupial's habitat, a conservation group warned.