How sharp are piranhas' teeth?

Horrific Piranhas of South America

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A weapon of extreme simplicity yet formidable combat power: the ancient sling!

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In China, it’s treated like a treasure; on Amazon, people actually eat it for dinner?

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[DIY]Challenging piranha sculpture

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A神奇, entirely transparent creature in the sea that looks like a silicone toy

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Why is it so hard to drive a walking tractor?

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Why is printer ink sold for more than champagne?

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Why does this arrow, thinner than a toothpick, strike terror into animals?

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Even Bolt couldn’t outrun you from the cannibal tribe!

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Why don’t motorcycles make their fuel tanks transparent?

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Why must concrete mixer trucks rinse their drums immediately after work?

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"Piranha VS Geoduck"

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How fierce are piranhas?

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Why must steel strands be first separated and combed?

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Why is there always a worker crouching in the most dangerous spot next to the piling rig?

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It may seem like a waste to use premium wood for mop handles, but it’s actually a clever application

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Why can a single jar spew flames like an engine?

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How do submarines vent smoke while submerged?

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Why did the workers dump clams into the mud?

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When the big tree is about to fall, that’s when things really get dangerous!

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