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Scientists Reverse Feather Evolution in Chicken Embryos

3/25/2025

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Summary

Story summary

In a groundbreaking study, University of Geneva researchers have temporarily reversed feather evolution in chicken embryos by targeting the Sonic Hedgehog gene. This manipulation sparked the growth of primitive proto-feathers akin to those of ancient dinosaurs. Remarkably, normal feathers eventually returned, underscoring the resilience and complexity of genetic evolution.

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Story summary

In a groundbreaking study, University of Geneva researchers have temporarily reversed feather evolution in chicken embryos by targeting the Sonic Hedgehog gene. This manipulation sparked the growth of primitive proto-feathers akin to those of ancient dinosaurs. Remarkably, normal feathers eventually returned, underscoring the resilience and complexity of genetic evolution.