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Hybrid puffins may have emerged in the 20th century due to warming
Genetic analysis suggests that two subspecies of Atlantic puffin began interbreeding in Norway in the 20th century, perhaps as a result of warming in the Arctic
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Genetic analysis suggests that two subspecies of Atlantic puffin began interbreeding in Norway in the 20th century, perhaps as a result of warming in the Arctic
Blackbirds given an injection that mimics a bacterial infection remained active during the day, but rested earlier in the evenings for up to three weeks