News tagged with reproductive output
Dolphin population stunted by fishing activities, study finds
Biology /
Nov 24, 2008 |
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Despite broad "dolphin safe" practices, fishing activities have continued to restrict the growth of at least one Pacific Ocean dolphin population, a new report led by a researcher at Scripps Institution of ...
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Inbreeding insects cast light on longer female lifespans
Biology /
Feb 06, 2009 |
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Inbreeding can unexpectedly extend male lifespan. Insect experiments described in the open access journal BMC Evolutionary Biology have shown that, in seed beetles, inbreeding causes males to live longer, while shortening ...
Exposing chicks to maternal stress leads to long-term reproductive success
Biology /
Oct 21, 2008 |
4 / 5 (2) |
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Do mothers purposely expose their offspring to their own stress? If so, why?
Helping Albacore tuna come out of the can
Aug 11, 2009 |
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(PhysOrg.com) -- Scientists are set to study the earbones and organs of more than 2000 albacore tuna to better understand the growth, age and breeding patterns of this increasingly important species.
Individuals vary their immune response according to age, sex and the costs
Biology /
Sep 10, 2008 |
5 / 5 (1) |
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Is it always good to respond maximally when pathogens or disease strike, or should individuals vary their immune response to balance immediate and future costs? This is the question evolutionary physiologists ...
Fetal study highlights impact of stress on male fertility
Oct 21, 2009 |
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Exposure to a combination of excess stress hormones and chemicals while in the womb could affect a man's fertility in later life, a study suggests.
No test needed for hand-foot genital syndrome in women without HOXA13 gene mutation
Oct 19, 2009 |
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Hugh S. Taylor, M.D., professor in the Department of Obstetrics, Gynecology & Reproductive Sciences at Yale, and colleagues have found that women without mutations of the HOXA13 gene do not need to be subjected to x-rays ...
What relates to the short-term effectiveness of biliary drainage?
Nov 18, 2009 |
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Biliary drainage is performed as a palliative treatment of hilar cholangiocarcinoma. The reduction of serum bilirubin is usually the hallmark of successful biliary drainage. However, some patients may have persistent jaundice ...
Male seahorses like big mates
Jul 07, 2009 |
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Male seahorses have a clear agenda when it comes to selecting a mating partner: to increase their reproductive success. By being choosy and preferring large females, they are likely to have more and bigger eggs, as well as ...
Teenage birth rates higher in more religious states
Medicine & Health / Psychology & Psychiatry
Sep 17, 2009 |
5 / 5 (5) |
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Rates of births to teenage mothers are strongly predicted by conservative religious beliefs, even after controlling for differences in income and rates of abortion. Researchers writing in BioMed Central's open access journal ...
Sharp's New Semiconductor Laser for Triple- and Quadruple- Layer Blu-ray Discs
Sep 18, 2009 |
4.7 / 5 (11) |
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(PhysOrg.com) -- Sharp Corporation has announced the development of a new 500 mW semiconductor laser for triple- and quadruple- layer Blu-ray discs.
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