TMBG are cool because they explain seemingly complex scientific things through song.

One of my favorite TMBG songs describes fusion on the Sun:

"The Sun is a mass of incandescent gas, a gigantic nuclear furnace where hydrogen is built into helium at a temperature of millions of degrees The Sun is hot, the Sun is not a place where we could live, But here on Earth there'd be no life without the life it gives."

link-check out the cool animation of the bio-mechanics of the ear.

Do you want to see what they were able to do with the circulatory system? Check out this cartoon titled Bloodmobile.