Heat-trapping asteroid dust may have incinerated the dinosaurs within hours
Within minutes of impact, debris began heating Earth’s atmosphere. Fine dust trapped that heat, potentially killing the dinosaurs quickly.
Author: Libby Riddle
Naked mole-rat queens rule their colonies with a potent odor
A compound made only by breeding queens keeps naked mole-rat colonies infertile and free of conflict.
‘Forever chemicals’ could be aging dolphins beyond their years
Common dolphins in New Zealand are biologically older than their calendar ages. Trace metals and “forever chemicals” may be to blame.
A rare 3-D snake fossil is spilling secrets of its unusual lifestyle
A new snake’s unique head anatomy suggests early snakes were even more diverse than thought. This one was a rare burrower.
In painted caves, ancient human DNA clings to the walls
Scientists recovered ancient human DNA from cave walls for the first time. Refined, the method could help link prehistoric paintings to their makers.