ALEXIS ROSENFELD / SCIENCE PHOTO LIBRARY ALEXIS ROSENFELD / SCIENCE PHOTO LIBRARY
Pearl toby fish (Canthigaster margaritata). This bony tropical fish is found in shallow waters around coral reefs. It's powerful beak-like mouth allows it to eat everything from algae to crustaceans to coral. It grows to a maximum length of around 30 centimetres. Photographed in the Indian Ocean.
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