a yellow octopus against yellow seaweed
In the Know

How do octopuses blend in?

Octopuses are found in oceans worldwide, from shallow coasts to the darkest depths. The only hard part of their body is their beak, which they use to crack open crabs and clams for lunch. To … Read more

In the Know

How strong is spider silk?

You see a complicated circular web that glows golden in the sunlight. A golden orb weaving spider has woven another masterpiece. You accidentally walk through it. The strands break and feel sticky. For a horsefly … Read more

a person holds their hand behind their ear
In the Know

Do Humans Have Ear Muscles?

Can you wiggle your ears? About one in five people can. New research shows that even if you can’t, you have ear muscles that automatically kick into action when you are straining to hear sounds. … Read more

In the Know

Glowing Gases

You might have seen these types of lighted signs hanging outside of businesses or on walls in your town. They are often called neon lights. They are named after one of the gases used to … Read more