In terms of their body plan, Old World monkeys—a group that includes primates like baboons and macaques—are generally considered more similar to ancestral species than apes are. But a new study that ...

DURHAM, N.C. -- A surprisingly complete fossil skull of an ancient relative of humans, apes and monkeys bears striking evidence that our remote ancestor was less mentally advanced than expected by ...

A surprisingly complete fossil skull of an ancient relative of humans, apes and monkeys bears striking evidence that our remote ancestor was less mentally advanced than expected by about 29 million ...

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The earliest ancestors of old-world monkeys, apes and humans had surprisingly small brains, a new study shows. This finding – based on a newly described fossil skull – means that large brains evolved ...

A monkeylike animal seen as an ancestor of monkeys, apes and humans was not as brainy as expected, according to scientists who analyzed its nicely preserved 29 million-year-old skull. Subscribe to ...

Our earliest ancestors had surprisingly small brains particularly about 29 million years ago, says a new study. Elwyn Simons, a physical anthropologist at Duke University in Durham, North Carolina, US ...

Fayum anthropoids ranged in body size from about 600 g to about 6,000 g. A similar range of body size is found among extant Cebidae. The Fayum primates are larger than any extant insectivorous ...