These fish may feel pleasure while being groomed by other fish
Summary
A study suggests that fish may experience pleasure when groomed by other fish. Researchers observed that fish preferred staying in areas where they had been "cleaned," indicating they might enjoy the process.Key Facts
- A study focused on fish's potential to feel pleasure during grooming.
- Researchers used two types of coral reef fish: bluestreak cleaner wrasse and threadfin butterflyfish.
- Cleaner wrasse fish remove parasites from other fish, including predatory ones.
- The threadfin butterflyfish showed a preference for areas where they were cleaned, even without needing it.
- Previous research mainly focused on fish experiencing pain and stress.
- The study is published in the journal Proceedings of the Royal Society B.
- Scientists noted fish have an opioid system, which regulates both pain and pleasure.
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