Wild Animals

Top 10 Animal Cheats

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Cyril Ruoso/JH Editorial/Getty Images

Orangutans are remarkably bright. In fact, some experts say their smarts are second only to humans. And like humans, orangutans have used their intelligence to craft tools. That's where the cheater part comes in — these creatures often use their tools to pick the locks of their own cages. In fact, they are so cunning when it comes to breaking and entering (or exiting) that zookeepers have used orangutans to test the security of enclosures for other animals. Next up: safe cracking?

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