"Due to the strong currents and warmer waters of the Alolan region, Tentacool have evolved without the need to move, developing a sail-like body and letting the warm ocean winds and waves move them around. Their brightly coloured, slightly transparent body is incredibly hard to see in the water, and the poison in their tentacles is much more potent than their Kanto cousins. Despite their body size of around 1.5 feet, their tentacles under the water can grow from anywhere between 10 to 30 feet! They move in groups, and spotting one on the sand can be the reason for a beach closure, as there would be many more nearby."

Winner of the "Pokémon Go Plus Alolan Competition" on "Eurogamer":http://www.eurogamer.net/articles/2016-09-19-pokemon-go-plus-competition-winners