Are you ready to be amazed and confused? From vampire deer to invisible butterflies to blind salamanders, these ten animals will make you say, "Huh?"
This caterpillar wards off predators by expanding parts of its body to camouflage itself as a slithering snake.
Photograph by Daniel Janzen, Janzen.UPenn.edu, Caters News
This oddly shaped pit bull-Dutch shepherd mix—named Quasi Modo—was born without part of her backbone.
Photograph by Dan Callister, Alamy Stock Photo
The Chinese water deer, native to China and Korea, has long, vampire-like tusks that it can hold back slightly while grazing.
Photograph by Joe Blossom, Alamy Stock Photo
This glasswing butterfly’s transparent wings help camouflage it from predators by making it partially invisible.
Photograph by Aminart, Oxford Scientific, Getty Images
The olm, a blind, cave-dwelling salamander, is nicknamed the “human fish” for its pale pink skin.
Photograph by Photo Researchers RM, Getty Images
Honeypot ants can hold large amounts of nutritious liquid in their abdomens, acting as living refrigerators for the rest of the colony.
Photograph by Mitsuhiko Imamori, Nature Production, Minden Pictures
Pelicans turn their throat pouch partially inside out during what looks like a yawn.
Photograph by David Osborn, Alamy Stock Photo
The tongue-eating louse, a parasite found inside of some fish, enters its host through its gills. The louse then attaches itself to—and eats—its host’s tongue.
Photograph by Dtamarack, iStockphoto
The reason for the glass frog’s see-through, organ-revealing belly is still a mystery to scientists.
Photograph by Joel Sartore, National Geographic Photo Ark, National Geographic Creative
The teeth of a parrotfish are fused together, resembling a beak—they’re strong enough to munch on coral.
Photograph by Levent Konuk, Shutterstock
Click the full-screen arrows in the upper right to read the captions!