What's the most intelligent box jellyfish?

It isn't intelligence really, just a coordinated response to their two senses, light and gravity which are housed in the rhopalia(box jellies having super cool compound eyes allowing for better response to those images). read more

Jellyfish also show evidence of habituation to repeated stimuli suggesting a capacity for information storage in their relatively simple nervous system [2]. Arguably the most sophisticated jellyfish are the cubozans (box jellyfish) which possess complex image forming eyes and are capable of navigating complicated, obstacle laden environments [3]. read more

1. Box Jellyfish (Chironex fleckeri) It seems to go without saying that the most poisonous, deadliest and meanest of all the jellyfish inhabits Australia. The variety of box jellyfish known as the sea wasp or marine stinger is widely regarded as one of the most deadly creatures on earth. read more