A chemical found in bear bile - used in many traditional Chinese medicines - could help heart attack victims, new research suggests.

Female moose may be able to manipulate amorous males - inciting fights between male competitors by moaning, say scientists.

A father who was dying from heart failure is given more time to wait for a transplant thanks to his artificial heart.

Astronomers using the Herschel space telescope definitively spot molecular oxygen in space for the first time, after a decades-long hunt.

Researchers working in Uganda say they have unearthed the well-preserved fossil skull of an ancient primate.