The ability to imagine — to play pretend — has long been thought to be unique to humans. A new study suggests one of our closest living relatives can do it too ....
Archaeologists in Britain say they've found the earliest evidence of humans making fires anywhere in the world. The discovery moves our understanding of when humans started making fire back by 350,000 years. (Image credit. JordanMansfield) ....
Scientists have long known that plastic waste is bad for marine animals. A new study quantifies how little ingested plastic it takes to be a lethal dose. (Image credit. Michael O'Neill) ....