Top 15 Weirdest Animals in the World

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Glass Frog

The glass slipper, er, frog!

Class: Amphibians
Order: Frogs

Family: Glassfrogs
Habitat: Southern Mexico, Bolivia, Brazil, Argentina; rainforests

Before you scroll down the page, we should warn you: it’s about to get a little gross! The glass frog is completely normal and green from above, but from below, you can see all its organs: its liver, its heart, its intestines, everything! Why? Camouflage! Without a clear silhouette, it’s hard to see this frog.

glass_frog Glass Frog - Photo: worldswildlifewonders/Shutterstock

Glass Frog Glass Frog - Photo: Dr. Morley Read/Shutterstock