- SEA LIFE Oberhausen, Coast
About the pufferfish
It's hard to believe, but true: a pufferfish can more than double its body volume in a flash! This special mechanism is triggered when the fish feels threatened. Due to its large body volume, it is then almost impossible for attackers like sharks to catch it. Some pufferfish species also have spines that rise up when they inflate their bodies. A real super fish!