before it was drained so this second major dig could be undertaken. There is evidence that the site used to be a river There is evidence that the site was a river and the fossils became trapped in ...

Guarding long-buried treasure, a monitor at a dig site looks out for thieves who illegally remove fossils for sale to collectors. He sleeps in the one-room shack on the rim, keeping an ear cocked ...

Could the fossils found at Laetoli and Hadar, roughly a thousand miles apart and spanning more than half-a-million years, have belonged to the same species? Each of the four dig sites reveals only ...