The dwarf planets in our Solar System are cold, dark, far away and full of surprises.
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Cockroaches have been on Earth far longer than humans and may outlast us. Here are a few reasons why.
It may have had something to do with protecting female purity. No official statute clearly required men to do all the acting back then.
These coordinated movements of a flock of starlings follow no plan or leader. Scientists used to think the animals must communicate via ESP to create these fast-moving blobs.
Who are the Ukrainians and when were they part of the same empire as Russia? A scholar answers basic questions on war in Ukraine.
As long as you don’t tune out the world and protect your hearing, it’s hard to overdo it.
Hard and strong, or bendy and flexible? A cartilaginous skeleton provides advantages in the ocean, but wouldn’t stand up to life on land.
Poop comes in many shapes, sizes and textures. The kind that’s too runny might be the result of wayward germs, Crohn’s disease or lactose intolerance.
That brownish/yellowish gunk that comes out on your finger if you scratch deep inside your ear? It actually serves an important purpose in your body.
Blood plays a vital role in keeping us alive, from delivering oxygen to the body’s organs to fighting off infections.
How did penguins end up with so few bones – and become lightning-fast swimmers?
Plants need light to feed themselves, so they grow in ways that help them collect as much of it as they can. Sometimes that’s straight up, but not always.
A healthy diet can include some candy. But if you eat too much, it can interfere with your appetite for the stuff your body actually needs.
Volcanoes might seem like nature’s incinerators, but using them to burn up trash would be dangerous and disrespectful to indigenous people who view them as sacred.
Extended periods of rain are most likely found in locations where mountains are near oceans.
The answer is more complicated than you might think. It has to do with how your body gets rid of old red blood cells.
The iconic image may have originated with a meat supplier named Samuel Wilson. Or not.
Video games are everywhere. So who was the first person to come up with the idea of playing a game on a computer screen?
Barns are practical buildings, designed to safeguard farm animals and equipment. Why are so many of them painted to stand out from the landscape?
The fastest things ever made by humans are spacecraft, and the fastest spacecraft reached 330,000 mph – only 0.05% the speed of light. But there are ways to go faster.
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