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Sperm Competition in Humans : Classic and Contemporary Readings by Todd K. Shackelford, Nicholas Pound, editors is a nonfiction available to read on EtoBox.

What is Sperm Competition in Humans : Classic and Contemporary Readings about?

In species with internal fertilization, sperm competition occurs when the sperm of two or more males simultaneously occupy the reproductive tract of a female and compete to fertilize an egg (Parker, 1970). A large body of empirical research has demonstrated that, as predicted by sperm competition theory, males and females in many species possess anatomical, behavioral, and physiological adaptations that have evolved to deal with the adaptive challenges associated with sperm competition. Moreover, in recent years, evolutionary biologists and psychologists have begun to examine the extent to which sperm competition may have been an important selective pressure during human evolution. Some research has suggested that male humans, like males of many bird, insect, and rodent species, might be able to adjust the number of sperm they inseminate according to the risk of sperm competition. Other research has examined whether such responses might be accompanied by psychological changes that motivate human males to pursue copulations when the risk of sperm competition is high. Furthermore, there is research suggesting that aspects of human penile anatomy might function to enhance success in s

Who reads Sperm Competition in Humans : Classic and Contemporary Readings?

Author

Todd K. Shackelford, Nicholas Pound, editors

Publisher

Springer Science+Business Media, Inc

Published

2006

Language

EN

ISBN

9780387280363

Category

nonfiction

Subjects

Science, Anthropology, Health & Fitness