Caves

A newfound, 400,000-year-old hominin skull has a few telltale features suggesting that it's more of a Neanderthal than a Homo sapiens relation, a new study finds.

A new species of land snail that lives underground in Brazil was named for a character in the popular role-playing tabletop game, Dungeons & Dragons.

Hikers exploring caves in southern Israel recently made an unexpected discovery: engravings of a cross and a menorah located close together on a cistern wall.

Glowworms create dazzling threads to trap unsuspecting insects. And now, researchers think they may have found the secret ingredient in the worms' traps: urea from their guts.

Two new species of spidery cave beetle have been discovered.

Stone tools dating back 14,550 years provide rare physical evidence that places humans in the Americas earlier than previously suspected — by more than 1,000 years.

Tooth marks on the leg bone of a hominin, an ancient human relative, suggest that the poor soul had a gristly end, a new study finds.

Hawaii just doubled the number of known land mammal species that are native to the islands, thanks to the discovery of a number of fossils representing a tiny bat.

Some undiscovered ones may extend far deeper into the Earth than the record of 1.36 miles.