Young male blue tits are less successful in fathering offspring outside their breeding pair, not because of a lack of experience, but because they are outcompeted by older males, Bart Kempenaers and colleagues from the Max ...
Plants & Animals
Apr 16, 2024
0
83
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
0
21
An international team of researchers has found that extra-pair paternity in pied flycatchers leads to cooperation between males and females in feeding and fending off threats. In their paper published in Proceedings of the ...
Since methods for genetic paternity analyses were introduced, it has been clear that many pair-living animal species, including humans, do not take partnership fidelity that seriously. In most species, there is some proportion ...
Plants & Animals
Nov 23, 2020
0
35
Compared with our closest relatives, the common chimpanzee and the bonobo, humans are pretty good at focusing exclusively on one mate at a time.
Social Sciences
Mar 11, 2020
1
110
A new study from UCLA professor of anthropology Brooke Scelza invites geneticists and sociologists to think more broadly about human fidelity and paternity.
Social Sciences
Feb 20, 2020
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1455
These days it's easy to resolve questions about paternity with over-the-counter test kits. Now, researchers have put DNA evidence together with long-term genealogical data to explore similar questions of biological fatherhood ...
Evolution
Nov 14, 2019
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226
Females of a socially monogamous passerine, the Japanese great tit (Parus minor), become more promiscuous after hatchings fail in the first breeding attempt—apparently attempting to ensure successful reproduction.
Plants & Animals
Oct 9, 2018
0
2
