Extremely rare blanket octopus spotted in Great Barrier Reef; video goes viral

A video showing extremely rare blanket octopus has gone viral on social media. The marine mollusc was spotted last week by reef guide and marine biologist Jacinta Shackleton, off the coast of Lady Elliot Island in the Great Barrier Reef. "When I first saw it, I thought it could have been a juvenile fish with long fins," Shackleton said.