New puffin species evolved because of climate change, scientists say

The new hybrid likely came from breeding between two subspecies within the past 100 years, which scientists said coincides with the warming pattern.

Scientists believe they have discovered a hybrid species of the Atlantic puffin that provides evidence of the first large-scale change of an animal species driven by climate change.

However, the hybridization occurred after one subspecies migrated south, not north towards cooler temperatures as you might expect, scientists said. Researchers discovered the phenomenon by testing whole-genome sequencing of the new hybrid species with 122-year-old specimens and reconstructing its demographic history to create an estimate of the hybridization timing.

“Our findings present a rare observation of a population-scale response to the rapid environmental changes that the Arctic ecosystem has started experiencing within the past century,” the scientists wrote in the study.

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