Power. Ambition. Jealousy. According to a new study, the same things that fuel deadly clashes in humans can also tear apart chimpanzees, our closest animal relatives.
The course of dinosaur evolution in Africa has largely remained a mystery. But in the Sahara Desert of Egypt, scientists have discovered a new species of dinosaur that helps fill in some gaps in the fossil record of dinosaurs in Africa: Mansourasaurus shahinae, a school-bus-length, long-necked plant-eater with bony plates embedded in its skin.
A jawbone complete with teeth recently discovered by at Israel's Misliya cave has now been dated to 177,000-194,000 years ago. The finding indicates that modern humans were present in the Levant at least 50,000 years earlier than previously thought.
New fossil finds over the past few years have been forcing anthropologists to reexamine our evolutionary path to becoming human. Now the earliest modern human fossil ever found outside the continent of Africa is pushing back the date for when our ancestors left Africa.