The Blue Dragon and 39 Other Bizarre Creatures That Will Blow Your Mind
Hoatzin
Some call it the stink bird, and others the reptile bird. But whatever name it goes by, the hoatzin is undeniably one of the most bizarre creatures in the world. It has a small head and an untidy pile of spiky feathers along its neck. There’s also no distinction between males and females.
The hoatzin is the only bird we know to carry out foregut digestion, a process also found in cattle, deer, and certain monkeys. And the unpleasant smell it releases during fermentation explains how it earned one of its names. It’s also well known for its unique vocalization and the claws on the wings of its young.
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