On the ocean floor near the Galapagos Islands, a submersible controlled by scientists came across a mysterious octopus as blue as the ocean and no bigger than a golf ball. "He's tiny! It's blue!" one excited scientist was recorded as saying when she first caught sight of the cerulean cephalopod on footage transmitted from the sub. The team from the Charles Darwin Foundation had just discovered a new species of octopus nearly 1,800 metres (5,900 feet) below the water's surface, according to