This week: "Elvis" woodpecker sighted, anti-terrorist fish guard cities, mystery of fingerprintless people solved, python eats pregnant sheep, and more.

Cats may not really have nine lives, but slow-motion footage reveals why felines that fall from great heights often manage to walk away from a seemingly lethal drop.

In a high-tech take on a canary in a coal mine, the U.S. Army is using sensitive bluegill fish to monitor water reservoirs for signs of contamination or attack.

After a '90s lull, the greenhouse gas is rising fast, but drying wetlands are making the situation look better than it is, researchers say.

You think that dog next door is noisy? Journey to the jungles of South America, and hear what scientists say is one of the loudest animals on Earth.

Scientists have deciphered the process one species of bacteria uses to "resurrect" its genetic material after being blasted by radiation or parched by lack of water.

Scientists have completed a detailed genetic map of the mouse brain that they hope will spur new insights into how the brain works and what happens when it breaks down.

In the mysterious outer reaches of our solar system, NASA's Voyager probes are finding magnetic "potholes," sluggish solar wind, and unusual cosmic rays.

Using modified voice-recognition software, researchers from several universities and Disney's Animal Kingdom are trying to learn how to "talk" like animals.

American robins are the host of choice for mosquitoes that carry West Nile virus, scientists say.

Two rare and related diseases leave their sufferers with no fingerprints—now researchers may have cracked the genetic code behind the inherited ailments.

Scientists are working on a chemical cocktail that can turn members of a massive colony of invasive Argentine ants into mortal foes.

Mass migrations of the marine crustaceans stir up ocean waters and may help pump nutrients to the surface waters, according to new research.

Taking full advantage of a rare solar "backlight," NASA's Cassini spacecraft has discovered a faint new ring around Saturn, as well as other interesting ring features.

The sensation of being mimicked by someone close behind—an effect suffered by some schizophrenics—has been reproduced in the lab, offering new clues to how the brain works.