News tagged with paternity
Mothers give interloper's offspring a head start in life
May 14, 2009 |
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A new study has revealed that mother birds can provide an early advantage to the chicks that they have sired with their non-social partner (known as extra-pair offspring).
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Researchers Identify the Most Promiscuous Birds in the World
Dec 09, 2009 |
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(PhysOrg.com) -- UConn ornithologist Chris Elphick and his colleagues carried out DNA tests to discover the paternity of Saltmarsh Sparrow nestlings.
Well-traveled wasps provide hope for vanishing species
Nov 09, 2009 |
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They may only be 1.5mm in size, but the tiny wasps that pollinate fig trees can travel over 160km in less than 48 hours, according to research from scientists at the University of Leeds. The fig wasps are transporting ...
Loyal alligators display the mating habits of birds
Oct 07, 2009 |
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Alligators display the same loyalty to their mating partners as birds reveals a study published today in Molecular Ecology. The ten-year-study by scientists from the Savannah River Ecology Laboratory reveal ...
Fruit fly sperm makes females do housework after sex
Sep 30, 2009 |
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The sperm of male fruit flies are coated with a chemical 'sex peptide' which inhibits the female's usual afternoon siesta and compels her into an intense period of foraging activity.
Sheep that shed light on personality differences
Sep 15, 2009 |
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The team led by Denis Reale, a professor in the Department of Biological Sciences at UQAM and Canada Research Chair in Behavioural Ecology, recently completed a study showing the link between personality, survival and reproductive ...
DNA pioneer appeals for cuts to criminal database
Sep 10, 2009 |
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(AP) -- Like so many great discoveries, it was an accident. British scientist Alec Jeffreys realized 25 years ago Thursday that individuals have "DNA fingerprints," unique patterns of genetic material that ...
Mother knows best: Females control sperm storage to pick the best father
Sep 08, 2009 |
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(PhysOrg.com) -- Scientists have found new evidence to explain how female insects can influence the father of their offspring, even after mating with up to ten males. A team from the University of Exeter has ...
Zoo volunteers help explain mysteries of the genome
Sep 07, 2009 |
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As we approache the 25th anniversary of the discovery of DNA fingerprinting (September 10), University of Leicester geneticists interested in a particular type of DNA are receiving some help from an unusual ...
Men who do the housework are more likely to get the girl
Other Sciences / Social Sciences
Aug 04, 2009 |
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(PhysOrg.com) -- An Oxford study suggests that if you want to settle down, your chances of getting married or living with someone are probably highest in Great Britain, the Scandinavian countries and the United ...
Spread your sperm the smart way
Jul 09, 2009 |
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(PhysOrg.com) -- Attractive males release fewer sperm per mating to maximise their chances of producing offspring across a range of females, according to a new paper on the evolution of ejaculation strategies. The findings ...
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