The Difference Between Triple-A and Quadruple-A Batteries

Who knew that differently charged batteries actually had different sizes? I just assumed they were different sizes to make them harder to mix up. I'm charged up by this new information.

An Elephant's Foot Next to a Human One Proves They Love Heels Just as Much as We Do

Are elephants just walking around on their tippy-toes all the time, then? Is the material of the rest of the foot just muscle, skin and nail? Whatever it is, it's one heck of a wedge heel!