Archaeological evidence in the form of stone tools from Lomekwi, Kenya, and butchered animal fossils from Dikika, Ethopia, indicates that our hominin ancestors were creating and using stone tools more than three million years ago, long before the emergence of our genus, Homo. The Lomekwi and Dikika data indicate that at least one hominin species, living during the same time of Lucy, was breaking stones to use as tools and using sharp stone edges as knives to butcher animals. Before these discoveries, the earliest evidence for tool use was ascribed to the origins of Homo. The behaviors of toolmaking and meat eating were thought to be unique to Homo, arising from a cognitive leap that differentiated our genus. Earlier hominins, such as Australopithecus, the genus thought to be the ancestor of Homo, were not thought to have the cognitive skills or dexterity to create tools from stone. The Lomekwi and Dikika evidence have scientists taking a new look at the origins of these behaviors.