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Tuesday, October 20, 2026Updated 15:44 UTC

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Measuring regrowth: Erk gradients guide zebrafish fins back to their original size after injury

Source: Phys.org · Oct 20, 2026 11:40 UTC

City lights along the Mediterranean Sea at night, seen from the International Space Station — File photo NASA · Public domain · Source

The Quick Take

In a new Nature Physics study, researchers found that fin regrowth in zebrafish is driven by a brief burst of growth signal at the fin tip, sized to the amount lost, which sets up gradients of Erk activity that guide the regrowth.

Read the full story at Phys.org

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