parrotfish

Scientists studied the microstructure of the coral-chomping teeth of the steephead parrotfish, pictured here, to learn about the fish's powerful bite. Credit: Alex The Reef Fish Geek/Nautilus Scuba Club, Cairns, Australia

The Parrotfish Bite, Greedy Slugs, Lefty Whales and Other Amazing Animals

Jellyfish prefer to sit upside down on the floor of their tank. Credit: Caltech

Sleeping Jellyfish, Discreet Cannibals, Conscientious Parrotfish and Other Amazing Animals