Fog that gathers on the trees and drips to the ground creates more precipitation than normal rainfall.

Swarms of tiny krill could have a big impact on ocean life, by churning the waters and bringing nutrients up from the depths.

After a long day spent socializing or learning who to flirt with, fruit flies apparently need to sleep longer, shedding light on what sleep may actually do for humans.

U.S. fertility clinics allow couples to choose child's sex

Satellite data show fractures in the thinning perennial ice cover of the Arctic.

The image from the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite shows forest fires (outlined in red) and thick smoke over Alaska and Canada on July 13, 2004.