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Dolphins and porpoises have different teeth

Dolphins have cone-shaped teeth, while porpoises have spade-shaped teeth.

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Dolphins also tend to have longer beaks and leaner bodies. They are more talkative too, whistling through their blowholes to communicate.

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A giant anteater's tongue is two feet long

Giant anteaters have no teeth and feed with a 2-foot-long tongue that can flick up to 150 times a minute.

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A beaver's front teeth never stop growing

Beavers have long orange incisors that grow continuously throughout their lives.

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Komodo dragons are the largest living lizards

Komodo dragons are the largest, heaviest lizards in the world and among the few with a venomous bite.

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