The threat of infants being killed by unrelated males is the key driver of monogamy in humans and other primates. The study by academics from UCL, University of Manchester, University of Oxford and University of Auckland, ...
Social Sciences
Jul 29, 2013
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Single fatherhood is a challenge many arachnids undertake, guarding eggs laid by females despite the costs to their own health and mating benefits, but the news may not be all bad for these dads.
Plants & Animals
Oct 10, 2012
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Great tits who have as many sons as daughters acquire more grandchildren than great tits with an uneven family composition. That is because their children are reproductively more successful concludes NWO researcher Reinder ...
Plants & Animals
Dec 19, 2011
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An experimental evolutionary study on house mice (Mus musculus) has found multiple mating is beneficial for both males and females.
Plants & Animals
Nov 24, 2011
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Fish with a placenta struggle to adapt to rapid changes in the food supply. They probably evolved in a stable, food-rich environment. As ecosystems change under the influence of humans, they are experiencing greater difficulty ...
Ecology
Jul 11, 2011
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In many organisms females directly or indirectly select mates (or sperm) and potentially influence the fitness of their offspring. Mate choice and sexual selection in plants is more complex in some ways than in animals because ...
Plants & Animals
Jun 27, 2011
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(PhysOrg.com) -- Male stick insects are becoming increasingly redundant, with new research showing some New Zealand female stick insects can reproduce as efficiently on their own as with a male mate.
Plants & Animals
Mar 24, 2010
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Mountain goats are no exception to the general rule among mammals that larger males sire more and healthier offspring. But University of Alberta researcher David Coltman has found a genetic quirk that might make female mountain ...
Plants & Animals
Nov 17, 2009
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Mating can be exhausting. When fruit flies mate, the females' genes are activated to roughly the same extent as when an immune reaction starts. This is shown in a study at Uppsala University that is now appearing in the scientific ...
Feb 19, 2009
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Picky female sparrows may be more unfaithful, new Imperial research suggests. Cheating on social partners is common in birds, and there are clear benefits to males who can raise more offspring without investing in their care. ...
Plants & Animals
Jan 12, 2024
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