News tagged with reproductive success

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Cuckolded males sing louder

The song of male songbirds is multifaceted and has two main functions: to repel rivals and to attract mates. Females often pay attention to certain features within a song, such as the presence of special syllables, to assess ...

dateAug 23, 2012 in Plants & Animals
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Are elder siblings helpers or competitors?

Having elder siblings decreases mortality risk in childhood, but same-sex elder siblings are associated with lower marriage rates and fewer children for their younger siblings in adulthood, according to the results of a long-term ...

dateNov 22, 2012 in Social Sciences
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First supper is a life changer for lizards

For young lizards born into this unpredictable world, their very first meal can be a major life changer. So say researchers who report evidence on July 3 in Current Biology, a Cell Press publication, that this early detail ...

dateJul 03, 2013 in Plants & Animals
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Battle of the sexes offers evolutionary insights

In a paper published May 3, in the journal Evolution, University of Cincinnati graduate student Karl Grieshop and Michal Polak, associate professor of biological sciences at UC, examine the role of genital spines in the reproductive ...

dateMay 03, 2012 in Evolution
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