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 ...

Longer thumbs mean bigger brains and this is “pivotal” to human evolution, research has found. Scientists studied 94 fossils and living animals to understand how our ancestors developed their gripping ...

It suggests that manual dexterity and brain evolution are connected across the entire primate lineage, from lemurs to humans. Notably, the correlation held even when human data were excluded, ...

These papers were first presented as a symposium at the annual meeting of the American Association for the Advancement of Science, Boston, Dec. 27, 1953. They were published in the Sept. 1954 issue of ...

What events led to differences between humans and other primates? What changes throughout evolution underlie such a dramatic shift in how we socialize and process information? Although somewhat ...

ANTH copy has bookplate: Smithsonian Institution Libraries, Gift from the Margery Masinter Foundation Endowment for Illustrated Books. "In Stone Tools in Human Evolution, John J. Shea argues that over ...