Adults aged over 70 years who are classified as overweight are less likely to die over a ten year period than adults who are in the 'normal' weight range, according to a new study published today in the Journal of The American Geriatrics Society.

The nectar of the almond tree produces an extraordinary and dangerous poison. This is the only known plant to have this poison in its flowers' nectar. A study carried out at the University of Haifa has revealed that bees are mysteriously drawn to the toxic substance.

Humans and human activities have clearly altered the Earth's landscape and oceans in countless ways, often to the detriment of other plants and animals. But a new report published online on January 28th in Current Biology, a Cell Press publication, shows just what a tangled food web we've woven. Two species of Mediterranean seabirds change their every move based on the activities of local fisheries and, in particular, the fish that people toss away. The seabirds' shifting movement patterns can be seen at the regional scale.

An innovative cardiac scanner will dramatically improve the process of diagnosing heart conditions.

Researchers at Ohio State University have found a new way to study how enzymes move as they repair DNA sun damage -- and that discovery could one day lead to new therapies for healing sunburned skin.