When I go to the aquarium, I can see jellyfish swimming in the tank… I don’t think it’s motivated, or exciting? Eh, somehow I’m healed. Jellyfish fans seem to be unexpectedly large, so people are always gathered in front of the jellyfish tank.
Jellyfish are creatures that live in the water. I never questioned it so far because I thought I could swim, but in fact, jellyfish are not swimming.
But you swim with an umbrella or something! That’s what I want to say. So in this miscellaneous study, I looked into some mysterious jellyfish!
Can’t jellyfish swim?
Life of jellyfish that swims once in a while and floats the rest.
It’s not that jellyfish can’t swim at all, but they are basically floating under the current of the tide; they sometimes swim and float most of their daily lives.
I thought you were opening and closing the jellyfish umbrella and swimming…
Jellyfish float and open and close their umbrellas and float on the water when they are about to sink… It is said that they have only a swimming ability. This is the ‘sometimes swimming’ movement.
The reason it looks like swimming gracefully in an aquarium is because it is properly creating a current in the tank. If there was no water, it would sink to the ground and come up on its own several times before weakening to death.
Jellyfish are known to have existed on Earth since 1 billion years ago, and they have hardly changed their appearance. Earth a billion years ago when life was born in the sea.
If you think jellyfish were already floating in the sea around this time, I am getting more and more interested in this mysterious creature …