Competition for food amongst tropical rainforest fish is tough, leading some species to develop strong survival strategies. The most famous of the rainforest fish is the piranha of the Amazon River, a fish that has developed rows of razor sharp teeth and a vicious personality to accompany them....
Their bodies are usuallylight grey with a dark grey to black stripepattern which runs from nose to the caudal fins with a bulky “top heavy” appearance. The fish has the typical catfish mouth which is a downturned sucker mouth.Their teeth are spoon-shapedand sharp, made to scrape algae ...