NPR

Here's why 6,000 octopuses like to be under the sea at an 'octopus garden'

Over 6,000 octopuses have been found huddling around an extinct volcano deep in the Pacific Ocean near California, and researchers now think they understand why the octopuses find it so cozy.
Researchers at the Monterey Bay Aquarium Research Institute studied female octopuses that nest together off Central California at a depth of about 3,200 meters.

Off the coast of California is an unusual "octopus garden" — the largest congregation of deep-sea octopuses ever discovered on Earth, where over 6,000 octopuses huddle around an extinct underwater volcano in the black, cold ocean depths, almost two miles below the surface.

Most are brooding females that spend their days doing nothing but guarding nests full of eggs, a tedious task which can take nearly two years. It would take even longer if not for the warm water seeping from the seafloor that speeds up the growth of their babies, according to new research that suggests this natural incubator is why octopuses gather there in such huge numbers.

The discovery, published in the journal on Wednesday, highlights

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