The World Wildlife Fund (WWF) has named the animals most endangered because they are hunted for their body parts.
Creatures like the great white shark and the Humphead wrass fish could be wiped out if rules aren't brought in to protect them, say the charity.
The wrass is prized for its big lips, a delicacy in Asia, and great whites are hunted for their teeth and fins.
A big conference in October will decide which creatures will be protected from being hunted and sold around the world.
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