This species may not look threatening, but it is sometimes regarded as one of the most dangerous animals in the sea thanks to its secret weapon - a potent venom produced by bacteria in their salivary glands. This venom is used to paralyze prey species like crustaceans and fish.
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@joelsartore Considering that the mother octopus does not care for the young after hatching, how does the salivary gland get populated with the bacteria? I have always wondered...