A movie in which a fish cut into halves bounces around is a hot topic overseas, why does this phenomenon occur?



A video of a fish cut in half with a knife and jumping around like a zombie is going viral overseas. In Japan, it is a relatively familiar scene of ``dancing eating'' of fish, squid, octopus, etc., but the principle behind it may not actually be that well known.

Video Of A 'Zombie Fish' Coming Back To Life Goes Viral. So What The Hell Is Going On? | IFLScience

http://www.iflscience.com/plants-and-animals/video-of-a-zombie-fish-coming-back-to-life-goes-viral-so-what-the-hell-is-going- on/

The source of the story is the following tweet posted by Yutaka Suzuki ( @Q57OUPrpy8OZaWt ) in July 2017. This tweet has been retweeted approximately 170,000 times and has over 240,000 likes.




The original tweet was immediately spread overseas, but it seems to have gained attention again in December 2017. The tweet below has been retweeted more than 13,000 times, mainly overseas, and the half body of the fish, which is presumed to be 'buri' from the yellow tail fin, is bouncing around in the tray.




After the fish's head was cut off and it was cut into two pieces with the bones still attached, no matter how you looked at it, it was hard to believe that it was ``alive.'' Despite this, it is truly shocking to see them move around as if they were alive, or as if they had been resurrected as zombies.



This tweet has been retweeted and has received many angry comments, as well as many tweets expressing their shock.








In another comment, ``That's why I don't eat sushi,'' someone said, ``That's exactly why I eat sushi.'' There are pros and cons.




So, as to why this is actually the case, this is probably caused by something that appears to be salt being sprinkled on the half of the fish. In fresh fish that has just been cut, the cells are still alive, and the energy-producing substance adenosine triphosphate (ATP) is still left in the muscles. Also, because membrane potential remains between cells, the energy that causes muscles to contract remains stored.

When substances such as salt are added to these 'living muscles,' the muscles are stimulated, and by repeatedly contracting and relaxing, they produce jerky movements that sound like screams of death. This mechanism is the same as the ``dancing food'' in which fresh squid, etc., becomes violent when you pour soy sauce on it. Even if the fish looks like it is writhing in pain, it is actually just a scientific phenomenon, so you can eat it with confidence. It's OK to put it away.




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in Science,   Video, Posted by darkhorse_log