Green fluorescent proteins in some primitive sea creatures may act as antioxidants that protect animals in times of illness or stress, a new study says.

Thirsty elephants get a helping hand, an old goat retires from the military, Lady Liberty prepares to show off her crown again, and more in our picks of the week's best news pictures.

Tired of being hassled by the Man? Start your own country (and government), says the Seasteading Institute, whose design-contest winners put a glossy sheen on life atop a glorified oil rig.

From polar plunges to an urban Iditarod spoof, two photographers roam the U.S. in search of offbeat events that show "true human spirit."

A "missing link" found in Germany may be a key to human evolution—a nearly intact skeleton of a 47-million-year-old lemur-like creature. Video.

"Ida," a "missing link" found in Germany, is an exceptionally well-preserved fossil primate and is being hailed by some as a milestone in human evolution—but not all experts are convinced.

Ida, an exceptionally well-preserved fossil primate from Germany, is being hailed by some as a critical "missing link" in human evolution—but not all experts are convinced.

Invasive Nile monitor lizards sunning themselves at an air reserve base near Miami are creating dangerous conditions for planes, wildlife officials say.

Prehistoric creepy crawlies--frozen in opaque amber for a hundred million years--have been brought back to (digital) life with a new x-ray technology. Several of the critters were added to a new online database.

Isn't it amazing what some folks will do to get attention? Pig diving, pigeon racing, and greasy-pole climbing all make an appearance in this round-up of some of the weirdest competitions and record-breaking attempts from April.

The glittering "grills" of some hip-hop stars aren't exactly unprecedented. Sophisticated dentistry allowed Native Americans to add bling to their teeth as far back as 2,500 years ago, a new study says.

The battle against invasive fire ants might be turning a corner, thanks to a fly that "zombifies" the ants from the inside, eats ant brains, then hatches from the hollowed-out head.

Flies that inject eggs into fire ants are being used to fight the invasive ants. The larvae grow inside the ants' heads, appear to control the ants' behavior, then "hatch" from the now empty skulls.

See a kangaroo with an arrow through its head, glowing paper lanterns in Indonesia, and an exceptionally lucky clover breeder in this week's best news photos.

Dogs, cats, monkeys, worms, fish--they've all been made to glow in the dark, thanks to one jellyfish and a whole lot of research. In this photo round-up of glowing animals (and the odd plant), see what science has done with a few fluorescent proteins.