Paying for the stuff you want with currency is way easier than relying on chairs you made or chickens you raised.
Earth has liquid rock inside. Here’s what happens to that rock to make lava happen.
Nature begins forming patterns at the molecular level – and sometimes they grow to enormous sizes.
Strangely behaving matter could one day explain some of the mysteries of space.
Ant feet are equipped with an array of tools – from retractable sticky pads to claws to special spines and hairs – enabling them to defy gravity and grip virtually any surface.
All the evidence points to one thing: humans and woolly mammoths certainly lived side by side. But did humans hunt mammoths too?
Seashells don’t make the noise of the ocean. Here’s what’s really going on.
People wouldn’t last long without the countless other species we depend on for survival.
An astrophysicist explains what wormholes are and how these theoretical space-time tunnels have popped up in the solutions to a set of decadesold equations.
An anthropologist explains some of the many ways animals use their tails, from balancing as they walk to attracting a mate.
A language scientist explains that talking was never invented but has evolved over hundreds of thousands of years.
Did you know enamel is the hardest substance in the body? And if you feel pain, it could mean there’s a problem deep inside your tooth.
A species that is an “apex” predator in one environment won’t necessarily remain so in another.
Albert Einstein might have the answer.
Noise pollution is a serious problem, and cars make a lot of it. But roads are also a factor.
The first hammerhead shark was likely the result of a genetic deformity. A biologist explains how shark DNA reveals hammerheads’ history.
It’s all based on their diet and how they capture their food. But did you know some whales do have teeth?
A biologist explains how researchers nail down the age of ancient fossils thanks to a physical process called radioactive decay.
A physicist explains how atoms arrange themselves into molecules – and how scientists are able to image these tiny bits of matter that make up everything around you.
The core principle of education is to enable students to become kind, giving and contributing members of their community and the world.