Tag: natural selection

As the climate changes, researchers often focus on how temperature may affect a species’ ability to survive. But survival isn’t the only concern. Changing temperatures could affect species’ ability to...

On the mountaintops of the Sierra Nevadas, mountain chickadees (Poecile gambeli) create food caches to survive the winter, and they rely on their memories to find them. Researchers had already...

In one of the fastest, most well-documented instances of adaptation, lizards in the southeastern United States developed a tolerance to lower temperatures in response to a recent severe winter. “Extreme...