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Half-male, half-female songbird discovered in Pennsylvania
Half-male, half-female songbird discovered in Pennsylvania
Biologists recently made a "once-in-a-lifetime" discovery of a bird that's male on the right side and female on the left. Mindy Weisberger reports.
những từ khóa: science, news, science news, biology, birds, động vật, gender, chromosomes, nature
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