a school of blue fish

Do fish sleep?

While most fish rest by reducing their activity and metabolism, the way fish "sleep" is different from the way land mammals sleep. Most fish don’t...
crude oil coming out of pipe

Why is there so much oil in the Middle East?

There isn't necessarily more oil in the Middle East; it's just the most cost-effective place to extract oil from due to it having ideal conditions...
freshwater saltwater estuary

How can the oceans be saltwater when the rivers that flow into them are...

The freshwater found in rivers originates from rainwater and melting snow/ice. As this water flows downriver towards the ocean (or sea), it picks up...
Earths inside

What would happen if I dug a hole through the earth and jumped in...

Digging a hole through the center of Earth is impossible with current technology and for many other reasons. However, let's do a thought experiment...
frozen pond

How do fish survive when ponds and lakes freeze?

When a lake freezes, only the top layer actually freezes over. The area beneath the ice is where fish survive. This is due to something called...

Stay connected

1,683FansLike
12FollowersFollow
552FollowersFollow