Puppy skeletons in pots and dogs found buried in house foundations are shedding light on mysterious pagan customs not found in written records from the era, researchers say.

As tornado season touches down in the U.S., see a high-tech tornado chaser's stunning footage of twisters—and of lightning as you've never seen it, in superslow motion.

A medieval historian in Italy found what is believed to be a portrait, hidden beneath another painting, of Leonardo da Vinci. Video.

See a giant, fire-breathing "baby", a meetup with meerkats, an icy wake in Midwest floodwaters, and more in this week's best news pictures.

Most animals that live in darkness are pale and colorless. Yet caecilians, wormlike amphibians that spend most of their lives underground, are surprisingly vibrant--a trait that might be due to just a little bit of light exposure in the distant past, a new study suggests.

A Kazakh woman claims to be 130 years old, making her the oldest living human in history. Her doctor believes she's 130, and her passport is offered as proof, but skeptics question the claim. Video.

These fakes weren't mere April Fool's Day pranks—even the silliest convinced the public that some very tall tales were true.

Fish have joined the growing ranks of animals that can count, according to a new study that showed mosquitofish could add up geometric shapes.

New technology allows a person limited control of a humanoid robot, according to the Honda Research Institute. Based on the flow of electricity and blood in a person's brain, the robot reportedly can move its hand, run, and "eat." Video.

See flaming sculptures in Spain, babies soaking in tubs, and a skeleton of the largest animal on Earth in this selection of life's moments from around the globe.

Last Saturday night the lights went out in more than 2,800 cities, towns, and villages. See what a difference Earth Hour made in New York, Hong Kong, and other famously bright burgs.

Hundreds of people captured tens of thousands of invasive, poisonous cane toads Sunday. After being "humanely" killed, many of the toads will be ground into fertilizer. Video.

In an ocean experiment gone awry, shrimplike animals have devoured tons of artificially stimulated algae meant to fight global warming.

Found in Peru's highland forests, the tiny new species has some unusual traits: Females lay only two eggs--each a third of the size of the mother herself.

A woman walking on water, a sparkling equinox sunrise, a penguin success story, and a Canadian seal hunter are among the players in the week's best news photos.