Top 15 Weirdest Animals in the World

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 - Photo: worldswildlifewonders/Shutterstock

Glass Frog - Photo: Dr. Morley Read/Shutterstock

• Table of Contents:
• 0. Introduction
• 1. Longhorn Cowfish
• 2. Glass Frog
• 3. Sawfish
• 4. Fried Egg Jellyfish
• 5. Streaked Tenrec
• 6. Red-Lipped Batfish
• 7. Saiga
• 8. Spook Fish
• 9. Clearwing Moth
• 10. Musk Deer
• 11. Dugong
• 12. Blue Ocean Slug
• 13. Giant Isopod
• 14. Leafy Seadragon
• 15. Leaf-Tailed Gecko