Rare Half-Male, Half-Female Cardinal Spotted In Pennsylvania
Bird is what's known as a bilateral gynandromorph, with male and female traits. This happens when female egg with two nuclei is 'double fertilized' by two sperm. The amazing male-female chimera was spotted in a Pennsylvania backyard. Male cardinals have bright red coloring; females have a much duller appearance.
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24.02.2021 20:53
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: 24.02.2021 20:53