Bigfin reef squid (Sepioteuthis lessoniana). This squid inhabits coral reefs in the tropical Indo- Pacific region. It can rapidly alter the colour of its skin, which it uses for camouflage and communication. This squid reaches a length of over 30 centimetres. If feeds on small fish and crustaceans, which it catches with a quick strike from two tentacles (not seen), which are usually kept hidden amongst its eight arms. Photographed in Lembeh Strait, North Sulawesi, Indonesia.