The Blue Ringed Octopus is one of South Australia's most venomous animals. They can be recognized by their characteristic blue and black rings and yellowish skin. They hunt small crabs and shrimp, and may bite attackers (including humans) if provoked, so it's best to stay clear and avoid contact at all times. They camouflage themselves quite well until provoked, at which point they change color rapidly, becoming bright yellow with their blue rings flashing. You can often spot this beautiful creature during night dives at many of the South Australian dive spots. During the day they usually hide in small caves and other small spaces such as bottles.