The human body is a machine whose many parts – from the microscopic details of our cells to our limbs, eyes, liver and brain – have been assembled in fits and starts over the four billion years of our ...

The extraordinary evolution of humans is often exemplified by two defining traits: large brains and highly dexterous hands. Together, they enabled the development of tools, the rise of complex ...

Longer thumbs mean bigger brains and this is “pivotal” to human evolution, research has found. “Large brains and dexterous hands are considered pivotal in human evolution, together making possible ...

Conference on the Relatives of Man: Modern Studies of the Relation of the Evolution of Nonhuman Primates to Human Evolution, New York (1962) ...