The outside of beetles can be shiny, dull, or extremely colorful. But what is going on inside the beetle? Take a virtual look inside the body of a beetle with the Beetle Dissection tool by exploring on your own or following our Beetle Dissection Activity. You can even see what they would look like if you had x-ray vision. Visit Beetle Dissection Central for more.

As you go about your day, breathing and thinking, with your heart beating, your body is working. It sends and receives signals, grows, and stores fat, among hundreds of other functions. All of these functions make up your physiology, or how your body works. The same is true for every living animal.

(Game requires Flash)

The shape of a molecule is very important. It’s what makes it possible for proteins to interact with other parts of the cell. In this invader game, you will defend the cells of the body against molecules of scorpion venom using antivenom. To learn more, visit Venom!

Some organisms, like this fungus, are able to glow, as if they were from an alien planet. But until recently, plants couldn't glow. Learn how scientists have found a way to make plants glow here on Earth.