The asteroid that struck the Earth 66 million years ago devastated life across the planet, wiping out the dinosaurs and other organisms in a hail of fire and catastrophic climate change. But new ...

A new study theorizes that evolution ticks at different speeds, especially when a big group of organisms first appears.

A reduced genome in an island species raises evolutionary questions.

Add Yahoo as a preferred source to see more of our stories on Google. It may have fewer than many of the other sciences, but biology does have two dozen or so “rules”—broad generalizations about the ...

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 ...

A new study posits that same-sex sexual behavior developed to help primates in complex social groups ease tension, reduce ...

A single thermal performance curve applies across life, from bacteria to animals. Species differ in optimal temperatures, but ...

It may have fewer than many of the other sciences, but biology does have two dozen or so “rules”—broad generalizations about the behavior or nature and evolution. Now, USC researchers want to add a ...

A major evolutionary theory says most genetic changes don’t really matter, but new evidence suggests that’s not true. Researchers found that helpful mutations happen surprisingly often. The twist is ...

Nonhuman primates like bonobos and chimpanzees might engage in same-sex sexual activities to strengthen bonds, particularly ...