A new technique for converting heat into electricity could lead the way to new, more efficient energy sources.

A new study looks at why sexual dimorphism?the non-sexual size and shape differences between the sexes?exists in the world of six- and eight-legged creatures.

The average global temperature last month was the highest for any January on record, according to NOAA, climbing to 55.13 degrees F (12.85 degrees C), which is 1.53 degrees F (0.85 degrees C) warmer than the 20th century average.

While a person's accidental death reported on the evening news can bring viewers to tears, mass killings reported as statistics fail to tickle human emotions, a new study finds.

People from all walks of life will don binoculars, if they can find them, and trek outside this weekend to count birds ranging from finches to juncos for 15 minutes.

Ants, fruits, plants and moose meat. These are a few of grizzly bears? favorite foods.