Ultralight video cameras fastened to crows' tail feathers have shown that the birds use a greater variety of tools and foraging techniques than had previously been thought.
The facial cancer that is killing Tasmanian devils at an alarming rate is contagious and spreads when the animals bite each other, scientists have announced.
White-backed vultures—once plentiful in India and Pakistan—have become critically endangered. Now environmentalists are urging a ban on a common veterinary drug that may be poisoning the birds.
In a bizarre mishap, 10,000 wildebeest have drowned while crossing Kenya's Mara River during an annual migration, wiping out one percent of the total species population.
A striking seaweed, ribbon-like metal, and twisted geometry are just some of the winners of the 2007 International Science and Engineering Visualization Challenge.