Earth Matters

14 amazing sinkholes

7 interesting facts about Lucy the ancient ape

In typical Texas fashion, urban nature park in Dallas would be country's biggest

Standing Rock protesters celebrate as pipeline is halted

These electric-blue night clouds are expanding around the globe, says NASA

World's highest plants discovered 20,000 feet above sea level

10 not-too-cold wintertime destinations

Curious beaver unimpressed with store selling fake Christmas trees

Matter is spontaneously appearing and then disappearing around this distant star

World's largest redwood forest outside of California is coming — to Ireland

Ants communicate, 'cast ballots' with a kiss

Manatee rescued from a Florida storm drain