A new study suggests that deep-sea “hot tubs” may help octopus eggs hatch faster
Most octopuses lead solitary lives. So scientists were startled to find thousands of octopus huddled together, protecting their eggs at the bottom of the ocean off the central California coast.
The nesting site, which the scientists dubbed an “octopus garden,” was first discovered in 2018 by researchers from the Monterey Bay National Marine Sanctuary and other institutions. The team used an underwater remote vehicle to film the throng of nearly 6,000 octopus nesting 2 miles deep. Only the hazy shimmer of escaping hot water meeting the frigid sea alerted the researchers to the hydrothermal seep. But they still didn’t know exactly why the octopus had gathered there.
The researchers found that eggs at this site hatch after about 21 months — far shorter than the four years or more it takes for other known deep-sea octopus eggs.
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