Clever cephalopods and colorblind camouflage champions---cuttlefish!
Most people would imagine that the Earth's rotation would be immune to our tampering. As it turns out, this isn't the case.
The stomachs of children who are dying appear ridiculously swollen, as if from over-eating. Is there a connection?
Have you ever wondered where medical scientists get tissue samples for their research?
With a gentle flick of the wrist on a warm summer day, you can launch a frisbee on a long and graceful flight. Why do they fly so well?
Isn't it amazing that dog breeds like the Chihuahua and the Great Dane can vary so much in size, yet be the same species?
If you've ever had to dig a hole and then fill it back in, you may have noticed a mysterious thing: there was always a little dirt left over. Why?
Why do airplanes sometimes leave long white contrails behind?
Most extrasolar planets are about the size of Jupiter, not Earth. So, is Earth's size and orbit unique?
Have you ever wondered how simple megaphones like cupping your hands around your mouth amplify your voice so well?
Why do we get pimples? The general covering of our bodies in hair -- what we call "fur" on other animals -- is at the root of our problem with acne.
Green sunfish can see quite well in water that is thick and murky. How?
The so-called lie detector tests you've heard of are usually polygraph tests. How does this test work, and how accurate is it?
If a cat is in your lap, you may feel its claws digging in just slightly in a slow, left-right pattern. Why do they do this?
If a minnow's skin is damaged by an attacking pike, it releases a chemical that attracts more pike. Why would a minnow want to attract more trouble?
If you grew up with a brother or sister, you probably know what sibling rivalry is like. For a spotted hyena, sibling rivalry is a matter of life and death.
Most birds you see standing on only one leg are doing an impressive balancing act while tucking the second leg into their feathers. Why do they do that?
Our development of larger brains had much to do with our evolution as a species. But the question is, what fueled the development of those larger brains?
The high concentration of sugar in honey forces the water out of any yeast or bacteria cells that could otherwise contaminate the food.
Today honey is mostly used for its distinctive flavor, but for baking it has another advantage as well: baked goods made with honey take longer to get stale.
It's such a commonplace event that you probably never asked yourself why you sleep. But from a scientific point of view, this is far from a mundane matter.