The larger Pacific striped octopus is one of the most exciting scientific discoveries that almost wasn’t. First described in 1991, the species was initially dismissed by the zoological community on the grounds that it was too bizarre to be real—that’s how much its behaviors fly in the face of nearly everything we know about cephalopods. Only in early 2013, when the creature was displayed in public for the first time, right here at the California Academy of Sciences, were early findings validated.
Much of the astonishing novelty of the larger Pacific striped octopus comes from its reproductive life. For instance, while most octopuses are cannibalistic, and have to exercise extreme caution while mating, these octopuses mate with their ventral sides touching, pressing their beaks and suckers together in an intimate embrace. (Nobody gets eaten.) And while most female octopuses die shortly after laying their first clutch of eggs, mothers in this species can mate and gestate many times throughout their lives.
The LPSO is unusually social as well, apparently content to live in close proximity with a few dozen of its kind, but we still have much to learn about its behavior and activities, both social and solo. In particular, its knack for dramatic changes in color and shape—turning quickly from dark red to black and white with stripes and spots—may hold some new clues to the workings of cephalopod communication.