The unknown dinosaur species dates to 190 million years ago. Click to read more. Dinosaurs once roamed the Earth and dominated life before their non-avian members went extinct 66 million years ago when a killer space rock, known as the Chicxulub impactor or the Chicxulub asteroid.
Despite their public image as torpid, lumbering creatures, many dinosaurs were evidently warm-blooded, highly active animals, capable of prolonged and strenuous aerobic exercise.
A latest analysis indicates that early human-like remains in South Africa might well be thousands of years old aged beyond initially assumed, raising the possibility that the creature's origin led up to humanity.