Blue Ringed Octopus Research Papers

The blue ringed octopus is can rapidly change its color form light brown to dark yellow to vivid yellow-brown with iridescent blue rings when agitated. The blue ringed octopus can grow to a maximum length of 20 centimetres when the tentacles are stretched out and weigh up to 100 grams, depending on the species.
1)The beak is one of the only 'hard parts' of an octopus this allows them to get into small crevices throughout the ocean.
2)Each tentacle bears two rows of whitish suckers on the inner surface that can move independently for the octopus to move how it chooses and they are strong enough to prize open bivalve shells. If a tentacle is damaged or lost, it can be regenerated like a lizard tail.
3)The blue ringed octopus has developed eyes