A huge network of earthworks, or geoglyphs, is visible in satellite imagery of a large area around Titicaca Lake, a researcher claims.
Neanderthals may have gone out with a bang.
A daring, death-defying race to find the planet's deepest hole is chronicled in a gripping new book.
A concerted international effort is needed to bring many shark species back from the brink of extinction.
A group of people who lived nearly 2,000 years ago in Sudanese Nubia took doses of tetracycline -- through their beer.
Is biofuel production competing with food production for African land space, or can the two forms of land-use coexist?
Why did our ancestors eat each other? Simple: They were hungry.
Small-brained human ancestors used stone tools to whack into large mammals 800,000 years earlier than previously thought.
A surfer and a passing beach-goer struggled to save a stranded great white shark in Australia last week...without getting bitten in the process.
Shark attack victims share their wisdom on what to do (and what not to do) if you are unlucky enough to find yourself in their shoes.