Barn Swallow Mate Selection Study
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divergent sexual selectionPhys Org
•Science
Science
Barn swallow research offers real-time insight on how new species form
89% Informative
Scientists used genetic sequencing from barn swallows around the globe to provide real-time evidence that sexual selection drives the emergence of new species.
Charles Darwin proposed the theory of sexual selection in 1875 .
The new findings shed light on how new species form, a fundamental but elusive process for all life on Earth .
Different preferences for tail feather length and chest color make barn swallows more likely to mate within their own group.
If the trend continues, these groups could no longer interbreed or produce offspring, markers for the formation of separate species.
Next, the team plans to sample more birds and study whether being a hybrid affects reproductive success.
VR Score
95
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37
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English
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