Reuters
The first humans who spread across North America during the last Ice Age put mammoths at the top of their menu, according to scientists who secured the first direct evidence of the diet of these ancient people. They discovered that her diet was mostly meat from megafauna - the largest animals in an ecosystem - with an emphasis on mammoths. Megafauna made up about 96% of her diet, with mammoths comprising about 40%, followed by elk, bison, camels and horses, and a negligible contribution from small mammals and plants.