GEORGETTE DOUWMA / SCIENCE PHOTO LIBRARY GEORGETTE DOUWMA / SCIENCE PHOTO LIBRARY
Black-saddled pufferfish (Canthigaster valentini) emerging from a coral reef, surrounded by sea squirts (purple). This pufferfish can reach up to 11 centimetres in length and is found in the tropical waters of the Indo-Pacific. It feeds on algae, tunicates, corals, bryozoans, polychaetes, echinoderms and molluscs. Photographed in Lembeh Strait, Indonesia.
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