In a first, lowland gorillas have been seen mating face-to-face. And it's not the first time the female, nicknamed Princess Leah, has made history.

A pair of western lowland gorillas in Congo surprised scientists with a never before seen mating behavior.

The device harnesses energy from walking to generate electricity and could help power prosthetic limbs or charge up essential battlefield gadgets, researchers say.

Within a few decades movie audiences may be able to experience the big screen in three dimensions without eyewear, thanks to new hologram technology being developed.

Worshippers step into a converted railway tanker, now used as a chapel, in a small Ukrainian village.

A rich deposit of 260-million-year-old fossils is being blasted apart by mining in the war-torn state of Kashmir, according to eyewitness accounts.

In the Chinese zodiac's Year of the Rat, rodent pets are all the rage. In Taiwan, marsupial sugar gliders also are gaining fame.

Animal sacrifice, food fights, surgically altered showgirls—see the surprising ways Mardi Gras is being marked around the world.

A long tradition of rat eating—here in Vietnam—is especially relevant at this lunar New Year ringing in the Chinese calendar's Year of the Rat.

The male Anna's hummingbird creates a loud squeak with its tail feathers during rapid dives, according to research that offers the first demonstration of a "new way for a bird to make a sound."

The hairless, finger-size animals' numbness to acidic burning sensations could help scientists in their quest to help humans in pain, a new study says.

Mastodon teeth clacked anew in Greece, a Kenyan boy was among many wounded by arrows, China unveiled a bubbly Olympic swim center, and more.

A hen in a small Mexican village has become a celebrity—it lays eggs with green shells. A chicken's genes determines its shell color.

The first wearable lens embedded with nano-size circuitry was unveiled this month and may one day be able to overlay displays on a person's field of view, researchers say.

A New York state archivist faces up to 25 years in prison for stealing historical artifacts and selling some on eBay to pay off bills and his daughter's credit card splurges.