Carbon 14 dating is useful for estimating the age of
This led one scientific journalist to refer to humans as "the third chimpanzee." Despite all that is held in common, however, the differences are crucial and allow humans to be allotted their own genus and species, Homo sapiens.
Human feet have lost their grasping capabilities and clearly reflect the fact that humans are characteristically bipedal while chimpanzees and all of their other relatives are characteristically quadrupedal as well as being more clearly adapted to tree-climbing as part of their normal way of life.
This was also a million years before the earliest known use of stone tools.
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.
One would expect, then, that the evidence for the increasing complexity of the prehistoric cultural record would be linked to an increase in brain size of the associated prehistoric hominids. Researchers can assess brain size and the form of limbs and feet of prehistoric specimens to see what they can tell us about the course of human development.
It is much less easy, however, to tell such things as whether or not the prehistoric creatures in question had lost their fur coatings yet or whether they had developed the capacity for articulate speech.