Do fish feel pain? Can fish feel pain? Do fish send out distress signals when they are killed?

Yes, all animals with nerves have, pain.

Fish are not as cute and fun as dogs, so they can't get as much sympathy from people as dogs. Second, fish can't bark like dogs, so they can't tell people if they're in pain. We scream when we accidentally hit the body, which is a conditioned reflex caused by pain.

When a pig is killed, the pig is called heart-splitting, and even the pain is fear. So, do fish feel pain? This is a deceptively simple question, but in reality it is very complicated, since even if the fish are opened, it does not make any sound, which makes it impossible for us to tell from the surface whether they will be painful or not.

At first, the team went fishing and found that the fish had been removed from the hook and put into the water, still swimming freely without any abnormalities. Therefore, the research team believed: the fish had no pain. The fish has no pain, and when we kill the fish, the fish jumps because of the lack of oxygen.

In fact, when we buy live fish, the boss usually gives the fish the first stick before killing it, not only because such fish are honest and easy to kill, but also because a stick is equivalent to us taking anesthetics during surgery.

So it won't be so painful to kill it. Of course, fish have a more nervous system and brain than mammals.

Much simpler, which causes them to open the abdomen, as long as the respiratory system (gills) is not removed, it can still live for a while, after all, it can still get trace amounts of oxygen from the air, its circulatory system.

Remove the gills and open the abdomen, all at once.

Of course, not all fish can't call, such as the yellow duck.

Yellow catfish) can make sounds, in addition, there are more than 50 known species of calling fish, and the reason they are killed is that their calls depend on compressing the bladder to press air, and in the water environment, they cannot compress the bladder and naturally cannot make sounds. Most fish don't have a sound system, so even if they are killed, they won't make painful calls. But that doesn't mean they won't be painfulIt turns out that fish actually have pain receptors, which means they also know pain, and usually fish are killed, and the longer they hold on, the more painful they become.

I don't think fish feel pain; They send out a distress signal when they are killed, and they have their own ability to communicate, and they will warn their companions by waging their tails vigorously.

I think fish can also feel pain, although their brains are relatively simple, but their nerves are still very developed and can feel pain; When the fish is killed, the fish will be knocked out first, and then the shark will be carried out, so the fish generally do not send a distress signal when they die.

Fish do not feel pain, and when they are killed, they are out of their original living environment and do not feel pain; Sending out some distress signals, their bodies will tremble, but not violently.

Yes Otherwise, they wouldn't struggle.

Absolutely. Fish also have nerves in their bodies, so if they are injured, they can feel pain.

Fish brains are not so developed and do not perceive the corresponding part of pain, so when nerve endings are touched, they do not perceive a painful sensation, but instead produce a reflex effect, and the fish do not mentally understand why they react this way.

Fish can feel pain, and most fish have both group C and A-delta fibers, which are associated with pain in fish.

Absolutely. Because there are nerves in the body of a fish, if it is damaged, it can feel pain.

Most netizens and so-called foreign scientists almost overwhelmingly believe that fish are painless!

But personal understanding! Yes!

But distinguish pain as people understand it.

Creatures that don't feel pain have long since died because they can't stay away from the beings that cause harm to them in time!