Natasha 🇪🇺
:mastodon:@Natasha_Jay@tech.lgbt
Sex-reversal in birds (genetically male/female but appear female/male) is surprisingly common.
Best detail: A genetically male bird, called a laughing kookaburra, had recently laid an egg.
"The discovery is likely to “raise some eyebrows” (or is it ruffle some feathers?), says Blanche Capel, a biologist at Duke University who wasn’t involved in the new work. Although sex determination is often viewed as a straightforward process, she explains, the reality is much more complicated."
https://www.science.org/content/article/sex-reversal-surprisingly-common-birds-new-study-suggests