How do bodies digest all of the parts of a hamburger? An interesting video follows a hamburger through the digestive system, showing the pathway of digestion and explaining how each of the components of a hamburger—the bun, the meat, and...

Examine a plant adaptation that deters animals from eating it. Some plants such as grapes, walnuts, and teas produce a chemical substance called tannin in its fruits and leaves because most animals dislike the texture and flavor. An...

Have you heard of the cinnamon challenge? The video explains why it is a horrible idea and can lead to serious illness, injury, and possibly death. It focuses on the properties of cinnamon and the way bodies react to eating it in large...

Much the chagrin of mothers around the world, germs are everywhere; it's unavoidable. Learn how these microscopic invaders have evolved different ways of spreading from one host to another with this short instructional video.

How do our bodies produce so much goo when we are sick? Surely it must do something good. Check out this video to find out why and how we make snot. [4:28]