Females on top: Three Steps to Emancipation Classical polyandry occurs when a female breeds with several males who will raise their offspring alone. New research suggests that three evolutionary steps ...

Chemical signal molecules are important for coordinating reproduction and are often used in conjunction with other signals. In Loligo squid, which swim in schools, the sight of the white egg finger ...

Acorn Woodpeckers live in close-knit family groups and have one of the most complex breeding systems of any bird in the world. In about 20 percent of family groups, up to 3 related females may lay ...

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Multiple paternity is no advanatge for the offspring of mice in the case of an infection with Salmonella. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted ...