The more promiscuous the female, the speedier the sperm
Published: January 21, 2009
Summary
Female promiscuity appears to have triggered changes in the type of sperm a male produces, according to new research on fish from central Africa.
The study, published in the Proceedings of the National Academy of Sciences of the USA, examines how competition for reproduction influences the sperm of many species of African cichlids. These fish have extremely diverse mating behaviours, ranging...
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