LOUISE MURRAY / SCIENCE PHOTO LIBRARY LOUISE MURRAY / SCIENCE PHOTO LIBRARY
Moontail bullseye (Priacanthus hamrur), close-up. This is a nocturnal fish, sheltering in dark places during the day. It is able to change colour, from silver to orange, in a matter of seconds. It feeds on crustaceans, other invertebrates and smaller fish, mainly feeding at night, and reaching a lengths of up to 40 centimetres. It is widespread in the Indo-Pacific region. Photographed on Egypt's Red Sea coast.
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