Incredibly intelligent and they have long memories. If memory serves me well, there was an example of an octopus remembering a person after 12 years of not seeing them.
They escape their aquariums. They squirt water at people they don't like. They need to be given their food in puzzle boxes to keep them from getting bored. And finally there is over that could apparently determine which team would won world cup football matches. OK the last one is a home, but you get my drift!
"Octopuses have a relatively short life expectancy, with some species living for as little as six months. Larger species, such as the giant pacific octopus, may live for up to five years under suitable circumstances. However, reproduction is a cause of death: males can live for only a few months after mating, and females die shortly after their eggs hatch."
They escape their aquariums. They squirt water at people they don't like. They need to be given their food in puzzle boxes to keep them from getting bored. And finally there is over that could apparently determine which team would won world cup football matches. OK the last one is a home, but you get my drift!
https://orionmagazine.org/article/deep-intellect/