Physical activity is a biological norm. When we don't exercise, we actually cause harm to our bodies.
Farming has been a useful tool for a long long time, and not just for humans!
What if you're a bird of prey, looking down on miles of grassland or desert, trying to spot a meal that's only an inch or two long?
On the American plains, squirrels are the food of choice for both the coyote and the badger.
How is it that cats can sleep so much? Learn more on this Moment of Science.
Though most true bugs eat plant sap, some feed on animals. One such true bug is the assassin bug, which feeds on fellow insects.
Bald eagles are not longer an endangered species. Learn more on this Moment of Science.
Learn how the rabbit population in Australia rose to six-hundred-million over the course of 100 years. "Rabbits Down Under" on this Moment of Science.
Learn how search engines work on this Moment of Science.
Early stone tools, like knives and scrapers, are easy for anthropologists to learn about because these items are still around. Even after two million years, a chipped stone tool is still going to be there when you dig it up.