bmc evolutionary biology

Mice also foIlowed migrating humans: Study


March 19th, 2012 - 2:53 pm ICT by IANS
London, March 19 (IANS) Unlike dogs, house mice may not be man's best friend, but they accompanied the two-legged specimen on their colonising drives.Study co-author Eleanor Jones (affiliated with the ... Read more...

Posted in Environment |

How male spiders try to trick females into sex


November 14th, 2011 - 1:46 pm ICT by IANS
Washington, Nov 14 (IANS) Male nursery web spiders try to trick females into sex with worthless silk-wrapped gifts. But females are not so easily impressed.Most gifts contain insects, but some ... Read more...

Posted in World |

Land plants ‘evolved from conjugating green algae’


April 18th, 2011 - 5:02 pm ICT by ANI
Washington, Apr 18 (ANI): A new research has revealed that the closest relatives to land plants are actually conjugating green algae such as Spirogyra.It was thought that Charales were the closest ... Read more...

Posted in Health Science |

Like humans, gibbons have regional accents too


February 7th, 2011 - 1:27 pm ICT by ANI
London, Feb 7 (ANI): A new study has found that just like humans, gibbons have regional accents too.Gibbons, which along with the great apes are the closest relatives to humans, sing to ... Read more...

Posted in Health Science |

Polygamous mice ‘have more fertile offspring’


February 5th, 2011 - 1:54 pm ICT by ANI
Washington, Feb 04 (ANI): A new study in mice has suggested that multiple partners may be the key to agile sperm that get the job done.Researchers Renee Firman and Leigh Simmons at ... Read more...

Posted in Health Science |

Bugs that control sex of female spiders’ offspring by killing male embryos


January 31st, 2011 - 12:40 pm ICT by ANI
London, Jan 31 (ANI): A new study has found that female spiders are at the mercy of certain parasitic bugs that kills of their embryonic sons.Wolbachia bacteria are transmitted through eggs, so ... Read more...

Posted in Health Science |

The more sex partners you have, the more fertile your offspring will be


January 20th, 2011 - 12:01 pm ICT by ANI
London, Jan 20 (ANI): In a new study, scientists at the Centre for Evolutionary Biology, University of Western Australia, have found being polygamous could be more than being monogamous, when it comes ... Read more...

Posted in Health Science |

Humans helped vulture population flourish in Canary Islands


December 13th, 2010 - 1:04 pm ICT by ANI
Washington, Dec 13 (ANI): A new study has found that the Egyptian vulture population of the Canary Islands flourished around the same time as humans began to colonise the islands."We found that ... Read more...

Posted in Health Science |

Female fish fan out fins to attract a mate


October 8th, 2010 - 3:47 pm ICT by ANI
Washington, Oct 8 (ANI): Scientists have for the first time described the evolution of the size of a female trait that males prefer when choosing a partner.The research has shown that ... Read more...

Posted in Health Science |

Average-looking female sparrows find good-looking mates ‘out of their league’


August 27th, 2010 - 1:02 pm ICT by ANI
Washington, Aug 27 (ANI): Female house sparrows that are mediocre in the looks department prefer choosing average looking male sparrows for mating, rather than the attractive ones, says a new study.Researchers from ... Read more...

Posted in Health Science |

Fishes are fond of gardening too!


June 21st, 2010 - 6:06 pm ICT by ANI
Washington, June 21 (ANI): Damselfish maintain algae gardens and they weed, harvest and defend them, a new study reveals.The research, to be published in the journal BMC Evolutionary Biology, also found ... Read more...

Posted in Health Science |

It rains male buffaloes when it rains


May 2nd, 2010 - 1:31 pm ICT by ANI
Washington, May 2 (ANI): Rainfall is linked to skewed sex ratios, according to a study on buffaloes.Scientists noted that an increased proportion of male African buffalo are born during the rainy season. ... Read more...

Posted in Health Science |

Rainfall associated with skewed sex ratios


April 23rd, 2010 - 6:18 pm ICT by ANI
Washington, April 23 (ANI): Rainfall is linked to skewed sex ratios, according to a new study.Scientists noted that an increased proportion of male African buffalo are born during the rainy season.Researchers ... Read more...

Posted in Health Science |

New scent created by breeding orchid species to trick male bees


April 22nd, 2010 - 5:08 pm ICT by ANI
Washington, April 22 (ANI): Just like some orchids attract males for pollination by mimicking the scent of a female insect, scientists have now created a new scent by breeding two orchid species ... Read more...

Posted in Health Science |

Domestication of rice ‘behind Asians’ alcohol flush reaction’


January 20th, 2010 - 1:31 pm ICT by ANI
Washington, Jan 20 (ANI): Chinese researchers hold rice responsible for the alcohol flush reaction, an unpleasant response to alcohol that is relatively common in people of Asian descent.Writing in the open access ... Read more...

Posted in Health Science |

Scent signals make lemurs prevent incest


December 3rd, 2009 - 3:33 pm ICT by ANI
Washington, Dec 3 (ANI): Lemurs can avoid incest and nepotism, thanks to some specific scent signals secreted from the genital glands of others in the family, according to a new study.Researchers have ... Read more...

Posted in Health Science |

Female fruit flies prefer keeping sex short to get a reproductive boost


August 22nd, 2009 - 12:04 pm ICT by ANI
Washington, August 22 (ANI): A new study has shown that female fruit flies prefer keeping sex short and sweet because they get a reproductive boost from shorter intercourse.Since males like ... Read more...

Posted in Health Science |

Amazing flying-crawling bat traced to 20 mn-year-old ancestor


July 31st, 2009 - 8:01 pm ICT by IANS
Sydney, July 31 (IANS) A bizarre bat species that is as much at home walking four-legged on the ground as winging through the air has been traced back to an Australian ancestor ... Read more...

Posted in Sci-Tech |

Declining bumblebee populations at greater risk of inbreeding, say researchers


July 2nd, 2009 - 1:15 pm ICT by ANI
Washington, July 2 (ANI): A new piece of research suggests that inbreeding can trigger a downward spiral of reduction among the already declining bumblebee populations.Published in the open access journal BMC ... Read more...

Posted in Health Science |

Like humans, birds too avoid inbreeding


June 30th, 2009 - 6:03 pm ICT by ANI
Washington, June 30 (ANI): Scientists have found that a strictly monogamous species of bird has the ability to choose partners with a different genetic profile.The researchers, led by Richard Wagner from the ... Read more...

Posted in Health Science |

Why male flies favour longer copulation times


June 12th, 2009 - 12:31 pm ICT by ANI
Washington, June 12 (ANI): A study on flies of the species Drosophila montana has shown that females engaged in extended intercourse wait longer before they mate again, increasing the first fly's chances ... Read more...

Posted in Health Science |

Good night’s sleep boosts immunity, protects against parasites


January 11th, 2009 - 3:53 pm ICT by IANS
London, Jan 11 (IANS) A sound sleep boosts immunity and protects against parasite infestation, according to a study. Brian Preston from the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, led ... Read more...

Posted in Sci-Tech |

A good night’’s sleep protects against parasite infestation


January 9th, 2009 - 5:12 pm ICT by ANI
Washington, Jan 9 (ANI): Researchers from Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany have found that animals that sleep longer do not suffer from parasite infestation.They hope that the ... Read more...

Posted in Health Science |

When it comes to sperm, size does not matter


November 25th, 2008 - 5:58 pm ICT by ANI
Washington, Nov 25 (ANI): A new study from University of Sheffield has challenged the popular scientific notion that length of a sperm''s tail can determine how fast it can swim.The researchers ... Read more...

Posted in National |

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