Aspect: |
Constantly and abrubptly changes the colour of its mottled coat when approached, with a combination of brown, blue, green and turquoise, but when at rest tries to blend in its background.
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Population: |
Common, but only seen at night.
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Notable feature: |
A sure way of distinguishing Octopus birareus from the more common, but larger, Octopus Vulgaris is the total absence of darker rings around its tentacle suckers.
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Environment: |
Never seen in daytime. Creeps out of its recess to hunt. It is a great bivalve, crustacean and gastropod predator in particular. |
Behaviour: |
Very wary. |