Fish
Do fish feel pain?
Verdict: Fact
Research shows fish have nociceptors (pain receptors) and demonstrate behaviors consistent with pain experience, including rubbing affected areas and avoiding painful stimuli. Their brain chemistry also changes in response to painful events.
Sources & Further Reading
- Proceedings of the Royal Society B
Related Facts
Do betta fish fight because they're aggressive?
Male bettas are territorial and will fight other males to the death in confined spaces.
Do fish grow to the size of their tank?
Fish growth is stunted in small tanks due to poor conditions, not because they "stop growing".
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