A new analysis uncovers traces of poison on the South African arrowheads, pushing back the timeline for poisoned weapons by ...

Sponges are among Earth's most ancient animals, but exactly when they evolved has long puzzled scientists. Genetic information from living sponges, as well as chemical signals from ancient rocks, ...

A pile of ancient arrowheads from southern Africa still holds traces of toxic plant residue, even after some 60,000 years.

For more than 70 years, what were thought to be mammoth fossils were tucked away in the archives of the University of Alaska ...

The concept of saline nasal irrigation, or bathing the nasal passages with a saltwater solution, is thought to have been ...