A small crustacean called Daphnia provides evidence that larger eye size yields a reproductive advantage.
55 million years ago, as the Earth heated up, many mammal species got smaller. Could the same thing happen again with human-induced global climate change?
When the drugs we use to heal us create unintended monsters.
What do you think about the idea that some of your behaviors may be naturally selected through the process of evolution?
Batesian mimicry, is the process by which a palatable animal or plant species evolves to mimic an unpalatable animal or plant.
How's it feel to be grounded with wings? Find out on this Moment of Science.
Surprisingly, even though there is no light to catch, the sunflower will continue to bend every day just as it did when it was outside. This is a classic example of what scientists call a circadian rhythm — it’s a daily cycle of behavior that is internal to the organism, rather than being solely triggered by the environment.
In this instance, nature is said to have “selected” the camouflaged butterfly over other variations that weren’t as well hidden. In “artificial selection,” the same thing happens, only we human beings make the choices.