Obviously, females are of equal importance to the survival of the human species, and, somewhat belatedly, the field of biological anthropology has come to realize that males and females require equal attention if the phenomenon of humankind and how it emerged from its nonhuman predecessors is ever to be understood.It came as something of a surprise when scientists determined that human beings share almost 99 percent of their genetic material with chimpanzees. Oldowan tools were used during the Lower Paleolithic period, 2.6 million years ago up until 1.7 million years ago, by ancient hominids across much of Africa, South Asia, the Middle East and Europe.
The age ended when humans began to make small, fine tools (Mesolithic) and finally when plant crops and have other types of agriculture (Neolithic).
In some areas, such as Western Europe, the way that people lived was affected by the Ice age.
This suggests that the immediate ancestor of Homo erectus was an early Homo habilis or , the search for early human fossils. Excavating in several caves, he found a hominid jaw fragment in 1890.
However, this was not convincing evidence of early human ancestry. During excavations in the eastern part of that island in 1891-1892, he recovered a Homo erectus brain case and femur (upper leg bone).
Classification of Oldowan tools is still somewhat contentious.
Mary Leakey was the first to create a system to classify Oldowan assemblages, and built her system based on prescribed use.
In his work on biology, he avoided the effort to treat biological entities by the use of rigid formal logic, and, though he made some inevitable errors in fact, his pragmatic approach has served as a model for biological observation ever since.
From long before the time of the ancient Greeks, human beings were generally recognized as members of the animal world.
The geological period which corresponds to the Palaeolithic is the Pleistocene.