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Reposted by Udit Nair

Wolfgang Goymann @dudumizi.bsky.social · 04/02/2026

Our new paper on Bateman gradients in black coucals and white-browed coucals is out. Females of both species outperform males in mating and reproductive success - confirming the generality of Bateman's principle when sex roles differ. Check it out: royalsocietypublishing.org/rspb/article...

royalsocietypublishing.org

Sex-role reversal and the Bateman gradient in coucals—females benefit from mating with multiple partners

Abstract. Conventional sex roles imply that males compete more vigorously with each other for fertilizations, whereas females are more selective in choosin

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