Ever heard of Diane's Bare-Hearted Glass Frog? The Glassfrog hails from Costa Rica and looks just like it's name: clear glass. You can see right through the frog's skin, and the frog, which is only the size of a quarter, is practically a living science lesson. You can view all of the frog's internal organs just by looking at it.
We don't know why the frogs have their glass appearance. The frogs have speckled skin, making them appear to be a clutch of eggs. Scientists believe this is to confuse predators who might wish to eat the eggs and instead go after a stronger, faster parent frog.
Have you ever seen a glass frog? What did you think?
photo courtesy of Wikipedia