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Tuesday, 3 March 2020

Mystery of lifespan gap between sexes may be solved, say researchers

Study finds chromosomes offer clue to longer life of different sexes in different species

From humans to black-tailed prairie dogs, female mammals often outlive males – but for birds, the reverse is true.

Now researchers say they have cracked the mystery, revealing that having two copies of the same sex chromosome is associated with having a longer lifespan, suggesting the second copy offers a protective effect.

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from The Guardian https://ift.tt/2wqScRM

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