Almost all of the ‘sex discordant’ birds were genetically female but had male reproductive organs, study finds
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About 5% of common Australian wild birds including kookaburras and lorikeets could have undergone a “sex reversal” where their genetic sex does not match their reproductive organs, according to a new study.
The study is thought to be the first to find widespread sex reversal across multiple wild bird species, but the cause of the phenomenon is not yet known.
