A free website lets registered users download digital scans of an enormous library of fossils.
New fossil discoveries continue to push the known boundaries of human evolution.
The early human species lived in Ethiopia 3.3 to 3.5 million years ago.
The earliest known stone toolkit could write a whole new chapter in the book of human evolution, especially since the tools were not even made by our genus.
One of three newly found prehistoric arm bones, likely from a Neanderthal, suggests that the individual had a muscle injury near the shoulder.
The bacteria that cause the illness may have been lurking around for 15 million years -- long before humans walked on Earth.
A 1.4-million-year-old hand-bone fossil means the modern human ability to make and use complex tools may have originated far earlier than scientists previously thought.
An unusual prehistoric fish with fins near its butt has helped to solve the mystery over why most animals, including humans, have paired limbs.
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