Farmer Fish and Shrimp Labor

Humans domesticated dogs, cats, horses, sheep, and many other animals. Tamed animals became pets, or helped with jobs like farming, or providing food. Researchers discovered that the longfin damselfish, also domesticates animals. The fish recruit mysid shrimp, to fertilize their algae farms. Damselfish protect the shrimp, in return for their beneficial poop!

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