The pros are looking for armchair archaeologists to help decipher ancient papyri fragments written in Greek, dating from the 3rd century BC to 7th century AD.
Humans living farther from the equator evolved bigger brains. But it doesn't mean that they're smarter - they need bigger brains in order to see in low light.
Cambridge researchers give evidence of modern humans migrating out of Africa with 10 times the population of Neanderthals in central and western Europe.