Arapaima gigas is a big fish in a bigger river full of piranhas, but that doesn’t mean it’s an easy meal. The freshwater giant has evolved armor-like scales that can deform, but do not tear or crack, when a piranha—which has one of the animal kingdom’s most powerful bites—attacks. Researchers from UC San Diego and UC Berkeley describe the unique properties of the Amazonian Arapaima skin and its potential for man-made materials October 16 in the journal Matter.
Click here for original story, What gives a three-meter-long Amazonian fish some of the toughest scales on Earth
Source: Phys.org