The bombardier beetle is aptly named: It fires toxic chemicals that, when released, sound like a bomb detonating.
Global warming is depleting oxygen in the water, creating and expanding "dead zones" toxic to sea life.
We don't perceive color in our peripheral vision because we have no cones, which sense light frequencies, on the outer edge of our retina.
In a lab study, dogs learned how to match other canines by species.
While steroids enhance muscle growth, they also cause liver damage and 'roid rage.
Scientists developed a system of equations that predict relationship stability, and the math checks out 94 percent of the time!
Moths with high-contrast markings like zebra stripes are harder to detect, at least at first, than those with background-matching camouflage.
Surveys show that 30 percent of people do not wash their hands after going to the bathroom, which exposes others to germs and infections.
Gut bacteria not only help digest food, they also signal to our brain that we've eaten enough.
A small crustacean called Daphnia provides evidence that larger eye size yields a reproductive advantage.