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.
