Have you got tadpoles in your pond yet? If they lose their tails they can regrow a new one within weeks (but don’t try this at home…)

tadpoles

Credit: Manchester University

This seems to be through raised levels of reactive oxygen species, which are usually thought to be harmful, and suggests that antioxidants may not always be helpful to health. The research could be important in understanding how healing happens, and help the development of regenerative medicine. Read the research in Nature Cell Biology.

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