hormone

The eyes on the wings of a butterfly can look kind of strange, but they're not looking at you, they're just a deflecting mechanism. Like a lot of butterfly species, the African satyrid butterfly's eyespots make predators more likely to attack its wings rather than the more vital parts of its body.

We've been hearing a lot about the importance of gut bacteria to our health. Now it turns out that bacteria also have a say in how and when we eat.

People have long debated whether physical or behavioral traits are the result of genetic inheritance or environmental factors. In an effort to end this debate, sometimes called nature versus nurture, Scientists have studied quail eggs.