New study of 7-million-year-old fossils from Chad proves Sahelanthropus tchadensis walked upright while still climbing trees.
They drew with crayons, possibly fed on maggots and maybe even kissed us: Forty millenniums later, our ancient human cousins ...
Scientists may have just pushed back the timeline for when our ancestors first started walking upright. A new study suggests ...
It's difficult to diagnose or fix a problem if you can't see it, and these cameras help you see what's going on in ...
“I once worked at an elevation of more than 5,000m in Bolivia and it was very difficult to breathe, eat and sleep.” Initially ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback