Piranhas and Tetras

Red-bellied piranhas and cardinal tetras live in schools.

They are well adapted to their dimly lit environments. The sun’s rays penetrate down through the water and reflect off the specialized cells on their skin, so that they can recognize their companions by their colours.
Left: Red-bellied Piranhas
Right: Cardinal Tetras

Biodôme de Montréal

© Biodôme de Montréal, 2005. All rights reserved

Teachers' Centre Home Page | Find Learning Resources & Lesson Plans