In this 4.4-million-year-old skeleton, scientists may have found the missing step between climbing and walking.

A 4.4-million-year-old Ardipithecus fossil named "Ardi" shows early humans walked upright, keeping ape-like climbing ...

Analysis of a 4.4-million-year-old ankle bone supports the hypothesis that the earliest humans evolved from an ape-like ...

Human flexibility in shoulders and elbows originated from ancient apes' need for safe tree descent. A new study reveals chimpanzees, unlike monkeys, ...

Gunung Palung National Park's abundance of unique creatures—from orangutans to flying foxes to clouded leopards—offers a glimpse into Borneo's past. A female orangutan forages for ripe figs in the ...

From Philly and the Pa. suburbs to South Jersey and Delaware, what would you like WHYY News to cover? Let us know! Clinging shyly to his mother, six-week-old Jambi made his public debut Wednesday ...