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Scientists have discovered at least four new species of octopus in the deep waters of a 100-square-mile area near Costa Rica, officials from the Schmidt Ocean Institute said on Tuesday. An ...

This newly discovered species of octopus is a deep-sea shapeshifter with large eyes and blood-red tentacles. Sounds terrifying? Don’t fret: these strange little guys are smaller than a golf ball.

Last month a team of scientists visited an ethereal nursery on the seafloor off Costa Rica, where they watched in awe as a new generation of deep-sea octopuses gently emerged from a quivering cluster ...