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Oct 16, 2019, 11:11 am55 ptsTrendingScienceDaily
Arapaima gigas is a big fish in a bigger river full of piranhas, but that doesn't mean it's an easy meal. It's evolved armor-like scales that deform, but don't tear or crack, when a piranha -- which has one of the animal kingdom's most powerful bites -- attacks. Researchers describe the unique properties of the…
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