Word: herto
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Dates: during 2000-2009
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...village of Herto, in the Middle Awash region of Ethiopia, is surrounded by sparse patches of dry, scrubby vegetation, barely enough to sustain the sheep, cattle and goat herds of the seminomadic Afar people who live there. But 160,000 years ago, conditions were far different: a shallow lake sat here, teeming with hippos, crocodiles and catfish. The lush grasslands that surrounded its pebble-strewn shores were filled with lions, zebras and antelopes as well as another creature, which traveled on two legs rather than four. Our distant ancestors had walked the earth for millions of years by this time...
...largely an accident, one that never would have happened if not for El Nino. Back in 1997, the Pacific Ocean disturbance that affects much of the world's weather triggered punishing rains in Ethiopia. The deluges not only exposed buried fossils but also drove away the people of Herto and their livestock, which would have trampled the fragile bones. When White and the others happened to drive by the village, they noticed a fossil hippo skull poking out of the ancient sand. On closer examination, the skull bore marks indicating that the animal had been gashed with a stone tool...