<P> Blue - ringed octopuses , comprising the genus Hapalochlaena , are four highly venomous species of octopus that are found in tide pools and coral reefs in the Pacific and Indian Oceans , from Japan to Australia . They can be identified by their yellowish skin and characteristic blue and black rings that change color dramatically when threatened . They eat small animals , including crabs , hermit crabs , shrimp , and other crustaceans . </P>
<P> Blue - ringed octopuses , comprising the genus Hapalochlaena , are four highly venomous species of octopus that are found in tide pools and coral reefs in the Pacific and Indian Oceans , from Japan to Australia . They can be identified by their yellowish skin and characteristic blue and black rings that change color dramatically when threatened . They eat small animals , including crabs , hermit crabs , shrimp , and other crustaceans . </P>
where can the blue ringed octopus be found
where can the blue ringed octopus be found
tide pools and coral reefs in the Pacific and Indian Oceans , from Japan to Australia
tide pools and coral reefs in the Pacific and Indian Oceans , from Japan to Australia