Friday 11 July 2014

Biologists Link Sexual Selection and Placentation

Sexual selection refers to species' selection for traits that are attractive to the opposite sex, the tail of male peacocks being an iconic example. This special type of natural selection enhances opportunities to mate. Biologists at the University of California, Riverside have now found that sexual selection and "placentation" - the formation of a placenta - are linked. Describing the life histories of more than 150 species of fish in the family Poeciliidae, the ...

via Medindia Health News More READ

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