Schooling fish have long fascinated us with their mesmerizing collective movements and seemingly perfect coordination. But a new study on clonal mollies suggests that this behavior is not innate. During their first days of life, the fish still display distinct individual behaviors, and it is only around one month of age that they begin to form cohesive shoals, developing the coordinated movements characteristic of the group. However, several shoals of genetically identical clones begin to behave differently after a few weeks.
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Study Reveals Learned Social Behavior in Genetically Identical Fish
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September 30, 2026
1 min read
📰 Phys.org
📋 Key Takeaway
A study on clonal mollies reveals that genetically identical fish exhibit distinct individual behaviors before forming coordinated shoals, suggesting that social behavior is learned rather than innate. This research highlights the complexity of social interactions in animal behavior. While not directly related to Iran, understanding behavioral dynamics can have implications for studies on social structures in various contexts.
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