Climbing

Gearheads Write ...the teeth are tightly packed and interlocking, and are used for rapid puncture and shearing...

  Known the world over for their fierce attacks, villainous movie roles, and voracious appetites, Piranhas are thankfully limited in range to a relatively small portion of South America. But that didn't stop Trango from making thousands of them and sending them all over the U.S.! The good news: this Piranha only bites when you want it to.   This little guy might actually find a permanent spot on my key ...

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...the teeth are tightly packed and interlocking, and are used for rapid puncture and shearing...