At first glance, there’s no obvious connection between a mammal’s ability to regulate its body temperature and its inability to repair heart damage

An international team has now succeeded in determining the spectral properties of individual molecules

Scientists have been puzzled about the variety of patterns on the surface of pollen grains—specifically, how they are formed and if they have a function

Surrounded by salty water, sea snakes sometimes live a thirsty existence

Nicotine works inside cells to reinforce addiction

A study of fruit flies finds a direct link between illness and the need for more sleep

The findings may explain why women are more likely to stay mentally sharp in later years

Earstones help the fish know up from down, determine their speed through the water, and aid hearing

The fossil site of Malapa in the Cradle of Humankind, South Africa yielded two partial skeletons

The discovery may prove to be of great significance for avoiding serious diseases such as cancer and diabetes

The study could have implications for public health and for medical procedures that replace mitochondria in human cells

After blocking estrogen signals in brain, experts say they've "never seen bone this strong"