How good are you at reading faces? Scientists have found that your gender may affect this ability.
Why are there males and females? Why are there two sexes instead of three, or twelve, or one?
Close your eyes and imagine that you’re a Mormon cricket. Why, you ask? Well, Mormon crickets are interesting. Like desert locust, they sometimes form large bands that march across the landscape of northeastern Utah and northwestern Colorado, and basically eat everything in their way. Learn more on this Moment of Science.
Have you ever wondered why cannibalism isn’t more popular? Just think about it, each animal is made of a complex variety of chemical ingredients. As an animal, we can either try to assemble these ingredients haphazardly, eating other animals and plants and hoping these assorted meals will add up to exactly what we need. Or we can get all our essential nutrients in one complete package by dining on our next-door neighbor! Learn more on this Moment of Science.
Very few people actually sit down and make up jokes, yet everyone is always telling jokes. Where do they come from? Learn more on this Moment of Science.
Is a fever always bad? Find out on this Moment of Science.
Was Elvis really in a burrito? Was Princess Di found in a cookie? 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.
So sometimes parents or stronger offspring will eat the weaker offspring in order to increase their own chances at survival.
The female wood mouse has multiple mates, so the sperm of this wood mouse may be competing with sperm from other males.