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27-Year Study: Female Birds Die Younger Than Males Across 35 Species

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A long-term study conducted over 27 years has found that female birds have lower survival rates than male birds. The research examined 35 different bird species across North America. Scientists believe that the physical demands of migration and reproduction place a greater burden on females. Additionally, genetic differences linked to sex chromosomes may contribute to the reduced lifespan of female birds.

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27-Year Study: Female Birds Die Younger Than Males Across 35 Species · ShortSingh