Shorter early-life telomere length could predict survival in Arctic seabirds
Phys.org
February 24, 2026
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A groundbreaking study published in *Ecological and Evolutionary Physiology* has revealed a surprising connection between early-life telomere length and survival outcomes in Arctic seabirds. Researchers examined black-legged kittiwakes, members of the gull family, and discovered that chicks with shorter telomeres were more likely to return to their birthplace as adults. This finding challenges previous assumptions that longer telomeres, which are typically associated with better health and longevity, would indicate higher survival rates. Instead, the study suggests that shorter telomeres in early life may actually be linked to greater resilience and a stronger likelihood of returning to the natal colony.
Telomeres, the protective caps at the ends of chromosomes, play a crucial role in cellular
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Originally published on Phys.org on 2/24/2026