arapaima

The strong scales structure of Aparaima fish helps them to cope with the sharp teeth of predators in the same habitat as piranhas.

The green woodpecker's tongue is five times longer than its head length, to the point that it must curl up inside its mouth when it contracts. Because this thick tongue is formed

Arapaima giant Amazon is attracting the attention of scientists at the University of California, San Diego to create super-durable materials.