World's oldest poison arrow: Archaeologists identify toxic substance on Stone Age hunters' 60,000–year–old weapon – and it still has active compounds

Researchers have identified traces of plant toxins on Stone Age arrowheads - making it the oldest known arrow poison in the ...
Science Daily

Scientists test a tiny eye implant that could restore sight

Scientists at USC are launching a new trial to test a tiny stem cell implant that could restore vision in people with ...