The bald eagle is now the official bird of the United States, nearly 250 years after it was first used as a symbol of the ...

Woodcock feathers reflected up to 55 percent of light, the researchers found—about 30 percent more than has been measured in any other bird. That astonishing whiteness is due to the combination of two ...

Brown helps wild animals camouflage themselves as they move along the ground or the trunks of trees. Brown fur keeps animals warm in the winter and cool in the summer because of insulation. But with ...