Why send an email when you can deliver your message on horseback. Add your name and address—and anything else you want to—to these colorful stationery files.

How many hooves of a trotting horse leave the ground at the same time? What about a walking horse or a galloping horse? Find out by making these photographic flipbooks.

Throughout time, people have dressed horses in different ways—sometimes for practical reasons, other times to reflect status or wealth. Explore the styles of horse dress from six world cultures.

Unlike humans, some animals can instantly change the color or pattern of their skin. Take a hands-on look at how the masters of disguise known as flounders can don several different looks.

Type your notes next to T. rex, send letters via Diatryma, or let Gondwanatitan deliver your message. Just add your name and address to these colorful stationery files. 

It's not just the taste buds in your mouth that let you taste sweet, bitter, salty, sour, and other flavors. Take the Jellybean Test to find out how your nose helps you taste. 

In a game like dodge ball, how is it that your brain is able to tell you to raise your arm and block an incoming ball with your elbow? Find out with this simple experiment.