"Fish can't feel pain"
Is this true?
We have all heard that recreational fishing is not injurious to fish, because they can't feel pain. Recently, I had someone tell me not to worry about bettas having fin rot or ammonia burns, because "fish are cold blooded; they can't feel pain".
(No, I don't fish for sport/fun/etc.)
If I remember correctly from A&P1, feeling pain is a preservational mechanism. Pain alerts us that something is causing damage to our bodies. Why on earth would a fish not have this mechanism?
I may be incorrect, but, I do believe that "pain" is a signal transmitted by our nerves, which are also responsible for other sensations. This is why, when we hurt ourselves, we can reduce the pain by rubbing the injured area. The nerves become confused, as they can only transmit one signal at a time, and therefore they transmit the sensation of pressure, and not of pain.
Fish have sensation, yes? Therefore, they should also feel pain?
The only cure for ignorance is education, and bullying or attacking someone is no way to educate them.