Why is it so hard to swat a fly? They see much faster than we can move! How do these tiny creatur...

Millions of people speak Portuguese, in Brazil, Portugal and around the world. Do you know how to...

Have you ever wondered what's inside a beaver's lodge? Get ready to dive in and explore! You'll l...

Millions of people speak Russian, in Russia and around the world. Do you know how to say hello, t...

Some parts of history are fascinating--and some are so strange they're unbelievable! Take a trip ...

Imagine a train in a tube that runs on air and can travel more than 600 miles (965 km) per hour. ...

Have you ever wondered what's inside an ant's nest? Get ready to dig in and explore! You'll learn...

Jet planes fly fast, but hypersonic jets fly even faster! These jets break the sound barrier by f...

Millions of people speak Polish in Poland and around the world. Do you know how to say hello, tha...

Millions of people speak Korean, in South Korea, North Korea, and around the world. Do you know h...

What if you could ride in a taxi that flies high in the sky? You might be able to do just that in...

Golden orb weavers' webs shine like gold. How do these spiders do it? Spiders That Spin Gold, par...