Sexual Monomorphism in Spotted Hyenas, Crocuta crocuta
Version of Record online: 26 APR 2010
1986 Blackwell Verlag GmbH
Volume 71, Issue 1, pages 63–73, January-December 1986
How to Cite
III, W. J. H., Tilson, R. L. and Frank, L. G. (1986), Sexual Monomorphism in Spotted Hyenas, Crocuta crocuta. Ethology, 71: 63–73. doi: 10.1111/j.1439-0310.1986.tb00570.x
- Issue online: 26 APR 2010
- Version of Record online: 26 APR 2010
- Received: February 6, 1984; Accepted: February 18, 1985
Intersexual and intrasexual interactions by female spotted hyenas, (Crocuta crocuta), are correlated with the ability of the heavier and more aggressive females to dominate males at large carcasses, the principal food of spotted hyenas.
Female spotted hyenas have a modified clitoris closely resembling a penis. A slightly bilobed scrotum containing fat and connective tissue contributes to the male-like appearance of the female sexual facies. Penile and pseudopenis erection by spotted hyenas occurs primarily during social encounters at carcasses and elsewhere.
Analyses here, based on interspecies comparisons of spotted hyena, brown hyena (Hyaena brunnea) and striped hyena (H. hyaena) morphology, behavior and ecology and interpopulation comparisons of spotted hyenas suggest possible gradualistic evolutionary interpretations of the pseudopenis.