News tagged with reproductive success

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Infertility and the battle of the sexes

About 10% of all couples hoping for a baby have fertility problems. Environmentalists say pollution is to blame and psychiatrists point to our stressful lifestyles, but evolutionary biologist Dr. Oren Hasson of Tel Aviv University's ...

dateSep 08, 2009 in Evolution
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How the daisy got its spots... and why

Dark spots on flower petals are common across many angiosperm plant families and occur on flowers such as some lilies, orchids, and daisies. Much research has been done on the physiological and behavioral mechanisms for ...

dateDec 18, 2009 in Plants & Animals
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Do hormones dictate breeding success in birds?

(PhysOrg.com) -- Some animals produce more offspring than others do. Hormones like prolactin and corticosterone can exercise a crucial influence on the behaviour of birds in the breeding season and therefore on their reproductive ...

dateJan 25, 2011 in Plants & Animals
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