First a python eats an alligator (and explodes), then another swallows a pregnant sheep (but not for long), and yet another ingests an electric blanket. Now this.

A chemical trick has triggered a co-evolutionary arms race between parasitic Alcon blue butterflies and Myrmica rubra ants in Denmark, a new study says.

The third anniversary of the Boxing Day tsunami is observed, China unveils its first homemade commercial jet, Bavarian "monsters" celebrate Christmas, and more.

Take a photographic tour of the remote seed bank deep inside a Norwegian mountain that is designed to house the world's crop varieties in case of a global catastrophe.

Catherine the Great's vodka bottle goes on display, emperor scorpions found in Dublin airport, robots compete for best-of-year award, and more.

See masterpieces form the famed "Bactrian hoard" and other artifacts that will visit the U.S. for the first time in 2008.

"Hyper-auroras" on Jupiter, clues to Mars's watery past, and the destruction of a stellar icon were among the out-of-this world discoveries that ranked as the year's most popular.

An ancient hoofed mammal the size of a raccoon may be a "missing link" in whale evolution, a new fossil study suggests.

A rat about five times the size of its city cousins and a possum described as "one of the world's smallest marsupials" were found during a recent expedition to the island of New Guinea.

A "strange owl," a bizarre shark, and giant squids were just some of National Geographic News's ten most viewed news photos of 2007.

See doctored images—and real photos used to create them—that sparked claims that National Geographic had found an ancient race of giants.

"Devils" follow St. Nick in Germany, Hubble spies a hazy exoplanet, China remembers a WWII massacre, and more.

An eight-foot catfish, the new seven wonders, and "the inside-out-seahorse-in-a-ball-nerd of the deep" are among our most viewed marvels.

What's now a windswept mountain at the bottom of the world was once the stomping ground of an enormous plant-eating dinosaur, scientists say.

See the world's newest snake species in action. The nine-foot cobra can kill up to 20 humans, experts in Africa say.