By studying the genome of an octopus species not known for its sympathy towards its peers, and then testing its behavioral reaction to a popular drug that alters the state of mind called MDMA or “ecstasy,” scientists say they have found preliminary evidence of an evolutionary link between social behaviours of the marine creature and humans, species separated by 500 million years in the evolutionary tree.
If the findings of these experiments are validated – which are detailed in an article...
http://www.maritimeherald.com/2018/as-it-does-in-people-ecstasy-makes-octopuses-more-sociable/