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These female hummingbirds evolved to look like males—apparently to evade aggression

Summary by Phys.org
White-necked jacobin hummingbirds sport a colorful blue-and-white plumage as juveniles. When they grow into adulthood, males retain this dazzling pattern, while females develop a more "muted" palette of green and white—at least, most females. Curiously, about 20% of females defy the norm and retain male-like plumage into adulthood.
3 months ago

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These female hummingbirds evolved to look like males—apparently to evade aggression

White-necked jacobin hummingbirds sport a colorful blue-and-white plumage as juveniles. When they grow into adulthood, males retain this dazzling pattern, while females develop a more "muted" palette of green and white—at least, most females. Curiously, about 20% of females defy the norm and retain male-like plumage into adulthood.

3 months ago·United Kingdom
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These female hummingbirds evolved to look like males — apparently to evade aggression

1 in 5 adult female white-necked jacobin hummingbirds look like males. New research from the University of Washington shows that this is a rare case of

3 months ago·Charlottesville, United States
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These female hummingbirds evolved to look like males — apparently to evade aggression

1 in 5 adult female white-necked jacobin hummingbirds look like males. New research from the University of Washington shows that this is a rare case of

3 months ago
Read Full Article

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