Octopuses were thought to be solitary until a social species turned up

The discovery of a species of octopus that lives in groups and mates face-to-face is changing our thinking about what cephalopods are capable of

Source:
https://www.newscientist.com/article/mg24432610-400-octopuses-were-thought-to-be-solitary-until-a-social-species-turned-up/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home