The only reason fish don't do well on standardized tests is that they don't have thumbs to hold a pencil. As for pain, I personally don't think fish feel what we think of as pain, and I really hope not because a fish is an animal that never dies of old age in the sea. They are always eaten live. The rest of them suffocate on the deck of a ship. I have seen sharks with their guts ripped out and they were swimming around in circles eating their own intestines. That, to me doesn't indicate a fish in pain. I also had a hippo tang once and a triggerfish ripped off his entire lower jaw because he had some food in his mouth. That hippo tang continued to try to eat just like nothing happened even though he had no way to injest food.I have also spent my life flounder fishing. (I even used to date a girl who looked like a flounder) I can't count the times I caught a flounder that was to small, removed the hook and did major damage to the fish, threw him back and caught it again 5 minutes later. These things don't prove what fish feel or if they feel pain, but it is all I have to go with. Maybe they also feel remorse, anger, and flatulence.