Environmental change doesn’t affect evolution in a single, predictable way. In large-scale computer simulations, scientists discovered that some fluctuating conditions help populations evolve higher ...

Cumulative culture -- the accumulation of technological modifications and improvements over generations -- allowed humans to adapt to a diversity of environments and challenges. But, it is unclear ...

How a few unique traits helped modern-style birds—the last living dinosaurs—survive the asteroid apocalypse that took out T. rex and other mighty beasts ...