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.
Clouds weigh several tons but stay airy by distributing their weight over a large area.
How does this ping pong ball float in mid-air? Bernoulli's Principle.
Bradycardia is a below average heart rate, slower than 60 beats per minute.
Ancient poop reveals that Romans suffered from intestinal parasites, despite their sophisticated sanitation system.
Scientists tackle this mystery: Why do mountains rise but never get any taller?
DNA detectives trace the bacteria that caused the Irish Potato Famine back to 16th century South America.
Though exaggerated in Hollywood creature features, anacondas are monstrous!