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legendary
Glasswing Butterfly
Greta oto
- Habitat
- Cloud forests, Central & South America
- Wingspan
- 61 mm
- Order
- Lepidoptera · Nymphalidae
Weird but real
Its wings are 90% transparent. Predators can see right through them.
Why it's cool
Skipped the colored-scales arms race and chose invisibility instead. Pure aerial ghost.

