It’s generally believed that evolution is a gradual process that takes place over significant periods of time. When it comes to fruit flies, however, researchers have long known that their ...

Add Yahoo as a preferred source to see more of our stories on Google. As summer approaches and temperatures rise, the CDC is saying acclimatization -- the process of the body adjusting to temperature ...

Rather than a slow, gradual process as Darwin envisioned, biologists can now see how evolutionary changes unfold on much more accelerated timescales. Using an accelerated arms race between bacteria ...