See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Great white sharks might have more flexible behavior than scientists ...

Since the days of Charles Darwin, evolutionary biologists have widely believed that most new species form because they've adapted to different environments—but a new University of Toronto study ...

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 ...

In the classic “run-and-tumble” movement pattern, bacteria swim forward (“run”) in one direction and then stop to rotate and reorient themselves in a new direction (“tumble”). During experiments where ...