Authors: Baker, R.R., Bellis, M.A. implications of sperm from different males competing for fertilization of the egg in the female tract. This book discusses these. Editorial Reviews. Review. immense amount of information carefully documented - Nature; Baker and Bellis may not be always right, but it is a hell of a good story. - Heredity; Human Sperm Competition: Copulation, Masturbation and.
Using a database ranging from large-scale surveys on sexual behavior to clinical studies of sperm morphology and func- tion, R. Robin Baker and Mark Bellis. Until recently, abnormal sperm in mammals were considered errors in production . Now, however, Baker and Bellis (, ) have proposed that mammalian.
1) How much opportunity is there for sperm competition in humans? Baker and Bellis () Survey of women (who read Company magazine) (all types. Since the s, behavioural ecologists and evolutionary biologists have been fascinated by the biological implications of sperm from different males competing .