Aerobic respiration began hundreds of millions of years earlier than previously thought, study suggests

Oxygen is a vital and constant presence on Earth today. But that hasn't always been the case. It wasn't until around 2.3 ...

The unraveling of the shrew, in winter: Studies decode genetic basis of seasonal organ shrinkage in mammals

Some mammals hibernate to survive in winter, but the Eurasian common shrew (Sorex araneus) employs Dehnel's phenomenon to get ...

These Tiny Footprints Could Reveal the Health of Entire Ecosystems

Researchers have now developed a new way to track and identify these animals by analyzing their footprints. The approach was tested on two nearly indistinguishable species of sengi and was shown to be ...