The fish have feelings too

Fish are the most common pet and, currently, are more sought after as food than meat. For years it was argued â€" in particular the scientific community â€" that the fish do not feel pain the same way as mammals, do not possess physical structures to do so.

However, a new study comes to disprove this theory. The investigation, conducted by Culum Brown of Macquarie University in Sydney, concluded that the fish not only feel pain the same way as mammals are also capable of relatively complex social interactions.

"A review of the evidence for the perception of pain indicates strongly that fish experience pain in a manner similar to the rest of the vertebrates," said the study, quoted by Dodo. "If we look at the fishes ' pain receptors is striking similarities with the same human receptors on pain receptors in all vertebrates are derived from a common ancestor to the fish," says the study.

The review also cites scientific studies that reveal complex cognitive capacity in fish: since long-term memories, traditions rooted, cooperation with other animals and the use of tools. Fish can recognize other animals of the same species and some researchers argue that the fish if they can recognize themselves.

Foto:  dbnunley / Creative Commons

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