URL：https://www.thoughtco.com/thmb/COh-z34kpKp36ghQ5OYakNkILyE=/5400x3594/filters:fill(auto,1)/portuguese-man-of-war-physalia-physalis-close-up-of-tentacles-sargasso-sea-bermuda-694029687-589a5e703df78caebc820543.jpg
掲載元：https://www.thoughtco.com/what-is-a-tentacle-130766
