Antioxidant in red wine protects against Alzheimer’s disease.

The active ingredient of marijuana could be considerably better at suppressing the abnormal clumping of malformed proteins that is a hallmark of Alzheimer's than any currently approved drugs prescribed for the treatment of the disease.

Some lizards offer colorful tails to predators as bait, losing the appendages on purpose. Later in life, the tails turn gray and tend to stay put.

NASA scientists investigate the effects of the eruption of a volcano in the Arctic circle on... India.

On an island in the Gulf of Alaska, cameras are providing streaming video and sound of some of the most intimate moments in the lives of endangered Steller sea lions.

"Spacemaker" protein is responsible for the complex eyes of fruit flies.