News tagged with polyandry
Polyandry drives increased embryo viability
An experimental evolutionary study on house mice (Mus musculus) has found multiple mating is beneficial for both males and females.
Nov 24, 2011 |
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Does promiscuity prevent extinction?
Promiscuous females may be the key to a species' survival, according to new research by the Universities of Exeter and Liverpool. Published today (25 February) in Current Biology, the study could solve the my ...
Feb 25, 2010 |
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Search results for polyandry
Increased honey bee diversity means fewer pathogens, more helpful bacteria
A novel study of honey bee genetic diversity co-authored by an Indiana University biologist has for the first time found that greater diversity in worker bees leads to colonies with fewer pathogens and more ...
Mar 12, 2012 |
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The unstable future of a world full of men
As the global population hits seven billion, experts are warning that skewed gender ratios could fuel the emergence of volatile "bachelor nations" driven by an aggressive competition for brides.
Other Sciences / Social Sciences
Oct 26, 2011 |
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Female promiscuity can rescue populations from harmful effects of inbreeding
Females in inbred populations become more promiscuous in order to screen out sperm from genetically incompatible males, according to new study by the University of East Anglia.
Sep 22, 2011 |
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Polygamy hurt 19th century Mormon wives' evolutionary fitness
Polygamy practiced by some 19th century Mormon men had the curious effect of suppressing the overall offspring numbers of Mormon women in plural marriages, say scientists from Indiana University Bloomington ...
Feb 22, 2011 |
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Promiscuity pays in the frog world
(PhysOrg.com) -- New research shows that the offspring of promiscuous female frogs have a higher rate of survival than those who remain monogamous, according to Macquarie University biologist, Associate Professor ...
Feb 17, 2011 |
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Unattractive guppies have better sperm
(PhysOrg.com) -- Scientists studying tropical guppies have discovered that the less colorful and attractive males have better quality sperm, while the attractive fish invest in their appearance at the expense ...
Jun 07, 2010 |
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Men are dying for sex: Mating competition explains excess male mortality
(PhysOrg.com) -- Men die at higher rates than women across the lifespan. A new study suggests that this excess mortality is the price of reproductive competition.
May 24, 2010 |
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Research sheds light on benefits of multiple mates
New research could explain why females of many species have multiple partners. Published on Friday 21 November 2008 in leading journal Science, the study was carried out by a team from the Universities of Exeter (UK), Okayam ...
Biology /
Nov 20, 2008 |
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Male seahorses are nature's Mr. Mom, researchers say
Male seahorses are nature’s real-life Mr. Moms – they take fathering to a whole new level: Pregnancy. Although it is common for male fish to play the dominant parenting role, male pregnancy is a complex process unique to ...
Biology /
May 01, 2008 |
4.8 / 5 (4) |
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New study sheds light on Galápagos hawk evolutionary history
Scientists at the University of Missouri-St. Louis used DNA sequences from feather lice to study how island populations of their host, the Galápagos Hawk might have colonized the Galápagos islands, home to the endangered ...
Biology /
Oct 02, 2007 |
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List of search results for polyandry
