Amazon fish wears armor to repel vicious piranha bites
Tuesday, October 15, 2013 - 14:01
in Biology & Nature
A freshwater Amazonian fish has evolved scales with microscopic armorlike structures specially designed to resist a piranha's piercing bite, new research shows.Arapaima gigas is the largest — and evolutionarily, one of the oldest — fish species living within the lakes of the Amazon River basin.