A remarkable octopus society has emerged off Australia’s coast, challenging long-held scientific assumptions. Known as “Octopolis” and “Octlantis,” these dense underwater sites contain more than 20 octopuses living close together in stone “dens,” where they actively arrange rocks into walls and barriers and even use tools. Once believed to be strictly solitary and short-lived hunters, octopuses in these colonies display unexpectedly complex social behavior. Researchers have documented theft and

Watch this octopus escape through a super small hole in a boat — and prepare to FREAK THE EFF OUT 😱 Plus more animals: http://bit.ly/2s6z1cV | Cosmopolitan