Spotted boxfish (Ostracion meleagris) feeding together among coral rubble. This fish inhabits coral reefs in the tropical Indo-Pacific region. It can reach a length of around 25 centimetres and feeds on sponges, molluscs, sea squirts and worms. When threatened it can release a poison called ostracitoxin, which can kill nearby fish and other animals. Filmed at Bunaken Island, Sulawesi, Indonesia. Bunaken Island still has almost pristine coral reefs, supporting a rich diversity of marine life.