GEORGETTE DOUWMA / SCIENCE PHOTO LIBRARY GEORGETTE DOUWMA / SCIENCE PHOTO LIBRARY
Broadclub cuttlefish (Sepia latimanus) male showing breeding colours. Cuttlefish can rapidly change the colour of their skin by dilating or contracting pigment cells called chromatophores. The bands of black and white are used to intimidate other males during the breeding season. Photographed off Komodo, Indonesia.
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