Dinosaurs evolved tiny arms more than once.
Possibly triggering a mass extinction.
One of the fastest swimmers on the planet secretes oil to stay slick.
“At the higher temperatures that seem to have prevailed during the early phase of life, evolution was shaking the dice frantically.”
Many digital games claiming to simulate evolution are inaccurate. These errors can undermine the games' potential educational benefits.
On top of all the extinctions, humans are causing new species to emerge rapidly.
Extinct toothed birds lived 99 million years ago.
What is driving them out of the water?