A golf ball-size octopus found on the deep seafloor off the Galápagos Islands is an entirely new species, scientists just announced. In July of 2015, during a 10-day expedition in the Pacific Ocean, researchers aboard the E/V Nautilus launched a robotic sub called Hercules just off the coast of Darwin Island,

Researchers exploring the deep-sea environment around the Galápagos Islands have identified a previously undescribed octopus species, notable for its vivid blue coloration and unusually small body siz...