Science

Swiss barn owls are gradually changing color

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 21/10/2026, 19:10:24 UTC.

Briefings

Scientists at the University of Lausanne analyzed genomes of over 3,000 Swiss barn owls over the past 30 years, identifying genetic variants linked to reddish-brown plumage and heavy spotting. This research, published in Nature Communications, demonstrates rapid natural selection driving color changes in the wild. The study confirms evolution occurs quickly in natural environments.

Key points

• Genome analysis of over 3,000 Swiss barn owls over 30 years revealed genetic variants causing reddish-brown plumage and heavy spotting.
• Natural selection is driving rapid evolutionary changes in plumage coloration within the wild.

Context

Researchers at the University of Lausanne examined 3,000+ owls to track color shifts over 30 years, confirming natural selection drives rapid evolution in wild populations.

Limitations

Genome data covers only 3,000 birds over 30 years; specific environmental drivers remain unobserved.

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