This week: 52 new species found in Borneo, rare river dolphin 'extinct," giant dinosaur discovered, lizard has "virgin birth," "Apocalypto" tortures Maya history, and more.

This week: Arctic sea ice may be gone in summer by 2040, no-pain disorder decoded, mammal may have glided before birds, wild new species discovered, and more.

This week: New photos may show liquid water on Mars, NASA plans moon base, city birds sing faster, ancient "curse tablet" found, and more.

This week: Al Gore interview, wasps' "pepper spray" weapon, pre-Inca tomb discovery, chemical secret of Stradivarius violins, new butterfly species, and more.

This week: World's rarest big cat caught, world landmarks rated, toilet shortage harms billions, "smart dust" may aid surveillance, SIV found in gorillas, and more.

This week: Neandertal DNA rebuilt, robot heals itself, lizards evolve in a flash, panda gets "porn," Saturn hurricane is nearly as wide as Earth, and more.

This week: Four-finned dolphin found, gas blast reshapes moon, poop scooped by Miami museum, horses stranded on tiny island, and more.

This week: Panama opens "frog hotel," new theory for why the dinos died out, elephants might be self-aware, no more seafood by 2048, Kenyan benga meets rock music, and more.

This week: Egyptian dentists' tombs found, Iceland resumes whaling, biggest "terror bird" discovered, prisoners train as crocodile handlers, bears trapped in Dumpsters, and more.

This week: Cloaking device created, pygmy buffalo discovered, why Hawaii earthquake rocked, new mammal found, and more.

This week: sea monsters and giant camels found, new bird discovered, Lisa Ling in North Korea, jail time in Darfur, and more.

This week: dog mummies of ancient Peru discovered, 2006 Nobel prize winners announced, crickets go "silent" to avoid parasites, sea lice killing wild salmon, tuberculosis may have wiped out the mastodons, and more.

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

This week: world's "oldest baby" found, "walking" sharks discovered, where neandertals made last stand, genetics expert makes case for faith, and more.

This week: Oldest writing in Americas found, new bird discovered, major quake off Florida, military contractors, blind Malian pop duo Amadou and Mariam, and more.