evolutionary biology

Male fireflies seduce females with sperm package


July 9th, 2012 - 2:38 pm ICT by IANS
London, July 9 (IANS) Male fireflies that try to attract mates with a flash of light also seduce the females with a gift -- a spermatophore package or a capsule ... Read more...

Posted in Environment |

Men aren’t hard-wired to be unfaithful after all?


June 28th, 2012 - 7:16 pm ICT by IANS
London, June 28 (IANS) A study has undermined the long-accepted theory that men are hard-wired to be unfaithful while women seek monogamy.University of California researchers examined the fruit fly study ... Read more...

Posted in Health Science |

‘Distorted music is like animals’ distress call’


June 13th, 2012 - 3:38 pm ICT by IANS
Washington, June 12 (IANS) The effect of listening to music with distortion is similar to hearing the cries of animals in distress, say researchers."Music that shares aural characteristics with the ... Read more...

Posted in World |

Colourful birds evolve faster


May 14th, 2012 - 1:23 pm ICT by IANS
Sydney, May 14 (IANS) Researchers have discovered that bird species with multiple plumage evolve into new species faster than those with only one colour form, confirming a 60-year-old evolution theory. ... Read more...

Posted in Environment |

Sparrows twittering louder to be heard


April 3rd, 2012 - 4:47 pm ICT by IANS
Washington, April 3 (IANS) Sparrows are twittering louder to be heard above the cacophony of car horns and engine rumbles in a cityscape, says a new study.Just as we raise ... Read more...

Posted in Environment |

Now climate change threatens Antarctica fish


February 14th, 2012 - 3:56 pm ICT by IANS
Washington, Feb 14 (IANS) Fish which adapted to the polar condition with 'anti-freeze' proteins, tens of millions of years ago, are now being endangered by a rapid rise in ocean ... Read more...

Posted in Uncategorized |

Bowerbirds entice females with illusory designs


January 30th, 2012 - 4:54 pm ICT by IANS
Sydney, Jan 30 (IANS) Male bowerbirds woo females by building 'artistic' bowers out of vegetation which is shaded by plants or trees that create an illusion of uniform decor. The ... Read more...

Posted in Uncategorized |

Not enough good scripts to go around: Tom Stoppard


January 22nd, 2012 - 9:33 pm ICT by IANS
Jaipur, Jan 22 (IANS) The art of writing good scripts is facing bleak times with not many of them around, says iconic playwright and screenplay writer Tom Stoppard of "Shakespeare ... Read more...

Posted in Life Style |

Fossils reveal 500 million-year-old tulip-shaped creature


January 19th, 2012 - 6:07 pm ICT by IANS
Toronto, Jan 19 (IANS) A tulip-shaped creature inhabiting ocean depths more than 500 million years ago has emerged from the famous Middle Cambrian Burgess Shale in the Canadian Rockies. Named ... Read more...

Posted in World |

Killer stress? Study on insects could help research


October 28th, 2011 - 10:07 pm ICT by IANS
Toronto, Oct 28 (IANS) A fish predator's mere presence can trigger enough stress to kill a dragonfly. Scientists suggest that the finding could be used as a model for studies ... Read more...

Posted in Health |

Genetic parasites changed pregnancy in mammals


September 27th, 2011 - 2:27 pm ICT by IANS
Washington, Sep 27 (IANS) How mammals reproduce today depends on a more than 100 million years old invasion of the mammalian genome by genetic parasites which radically changed the way ... Read more...

Posted in World |

Mumbai scientist to spearhead green cause


September 25th, 2011 - 7:04 pm ICT by IANS
Mumbai, Sep 25 (IANS) With the UN General Assembly declaring 2011 as the International Year of Forests (IYF 2011), a scientist here has launched a programme to create awareness about ... Read more...

Posted in Uncategorized |

Can Stone-Age diet prevent ageing?


August 4th, 2011 - 10:06 pm ICT by IANS
London, Aug 4 (IANS) While people generally turn quite anxious about their body's condition as they age, a US academician has claimed that once individuals reach their 90s their body ... Read more...

Posted in Life Style |

‘Freaky mouse’ defeats common poison


July 25th, 2011 - 6:10 pm ICT by IANS
Washington, July 25 (IANS) Mice have found ways of outwitting humans in the matter of survival -- by evolving resistance to common poison.New research by Michael Kohn and colleagues at ... Read more...

Posted in Sci-Tech |

DNA helps curb illegal logging of rainforests


July 4th, 2011 - 2:52 pm ICT by IANS
Sydney, July 4 (IANS) Advances in DNA 'fingerprinting' and other genetic techniques are helping curb illegal logging of dwindling rainforests. Thanks to the latest research, DNA fingerprinting for timber products ... Read more...

Posted in Environment |

Succulent plants emerged after Earth cooled, dried up


May 4th, 2011 - 5:57 pm ICT by ANI
Washington, May 4 (ANI): A team of biologists have determined that cacti, succulent plants and tropical grasses emerged as the Earth cooled, increased in aridity, and had lower atmospheric carbon-dioxide levels.Brown University ... Read more...

Posted in Health Science |

Scientists identify new strategy to control antibiotic resistance


March 19th, 2011 - 5:43 pm ICT by ANI
Washington, March 19 (ANI): Scientists have taken lessons from Adam Smith and Charles Darwin to devise a new strategy that could one day slow, possibly even prevent, the spread of drug-resistant bacteria.In ... Read more...

Posted in Health Science |

‘David and Goliath’ viruses key to origin of jumping genes


March 4th, 2011 - 4:15 pm ICT by ANI
Washington, Mar 4 (ANI): Researchers have discovered a pair of 'David and Goliath' viruses that could provide clues to the evolutionary origin of some jumping genes found in other organisms.The small virus ... Read more...

Posted in Health Science |

Gene may explain how leopards got its spots


February 25th, 2011 - 2:02 pm ICT by ANI
Washington, Feb 25 (ANI): How did the leopard get its spots? How did the zebra get its stripes?The answer may be a gene, which scientists have found governs colour patterns in deer ... Read more...

Posted in Health Science |

Being part of a crowd is what makes you unique: Study


February 23rd, 2011 - 5:11 pm ICT by ANI
Washington, Feb 23 (ANI): You may feel lost when you're in a crowd. But UCLA life scientists say that being part of a crowd is what makes you unique.Biologists Kimberly Pollard and ... Read more...

Posted in Health Science |

Even in a crowd, you remain unique


February 23rd, 2011 - 4:54 pm ICT by IANS
Washington, Feb 23 (IANS) It may be the height of paradox, but being part of a crowd is what gives you individuality, according to life scientists. Biologists Kimberly Pollard and Daniel Blumstein ... Read more...

Posted in Health Science |

2 new species of ‘leaping’ beetles found in New Caledonia


January 19th, 2011 - 6:33 pm ICT by ANI
Washington, Jan 19 (ANI): Spanish researchers have discovered two more species of 'leaping' beetles, also called 'flea' beetles, in New Caledonia, in the western Pacific - Arsipoda geographica and Arsipoda rostrata.Till ... Read more...

Posted in Health Science |

Humans first covered their nakedness 170,000 years ago


January 7th, 2011 - 6:46 pm ICT by IANS
Washington, Jan 7 (IANS) A research suggests that humans first covered their nakedness some 170,000 years ago, something which helped them move out of Africa. Research by David Reed, investigator at Florida ... Read more...

Posted in Sci-Tech |

Female butterflies chase males when it’s cool


January 7th, 2011 - 4:04 pm ICT by ANI
Washington, Jan 7 (ANI): Yale University researchers have found that female butterflies actively court males after being exposed to cool, dry temperatures as caterpillars.Raised in the moist and warmer season as larvae, ... Read more...

Posted in Health Science |

49,000-yr-old Spanish murder site indicates ‘Neanderthals were cannibals’


December 22nd, 2010 - 12:50 pm ICT by ANI
Washington, Dec 22 (ANI): Researchers have discovered an ancient mass murder site in Spain that indicates that Neanderthals could have feasted on the bodies of their family members too.The 49,000 years old ... Read more...

Posted in Health Science |

Power and corruption ‘maintain cooperation in society’


December 15th, 2010 - 3:18 pm ICT by ANI
Washington, Dec 15 (ANI): Power and corruption may play a role in maintaining overall societal cooperation, says a new study.Francisco Ubeda, an evolutionary biology professor at the University of Tennessee, Knoxville, and ... Read more...

Posted in Health Science |

Does corruption, power fuel cooperation in society?


December 15th, 2010 - 2:31 pm ICT by IANS
Washington, Dec 15 (IANS) Moral corruption and power asymmetries are pervasive in human societies, but as it turns out, they may fuel societal cooperation!Francisco Úbeda, evolutionary biology professor at the University of ... Read more...

Posted in Health Science |

Ability to tolerate aggression is partly genetic: Study


December 8th, 2010 - 5:01 pm ICT by ANI
Washington, Dec 8 (ANI): UCLA scientists have said that the ability to tolerate aggression is partly genetic."The ability to tolerate aggression is passed on across generations; there is genetic variation in the ... Read more...

Posted in Health Science |

Number of polar bears to fall, courtesy climate change


November 25th, 2010 - 4:35 pm ICT by ANI
Washington, Nov 25 (ANI): A new study by researchers at the University of California, Los Angeles (UCLA) has revealed that polar bears aren't suited for southern diets and their numbers are likely ... Read more...

Posted in Health Science |

Human childhood considerably longer than chimps: Study


November 16th, 2010 - 12:09 pm ICT by ANI
Washington, Nov 16 (ANI): Researchers have indicated that human childhood is considerably longer than chimpanzees, our closest-living ape relatives.A multinational team of specialists, led by researchers from Harvard University, Max-Planck Institute for ... Read more...

Posted in Health Science |

Why some people get sicker than others when exposed to same illness


October 31st, 2010 - 2:18 pm ICT by ANI
Washington, Oct 31 (ANI): A new study conducted on a population of wild sheep located on a remote island off the coast of Scotland that gauged the animals' susceptibility to infection may ... Read more...

Posted in Health Science |

Wolf nannies shorten male pups’ sex lives: Study


October 24th, 2010 - 1:16 pm ICT by ANI
Washington, Oct 24 (ANI): A new study has revealed that non-breeding wolves that help raise pups ultimately shorten the sex lives of the male pups when they grow up."The negative impact to ... Read more...

Posted in Health Science |

Gulf-spill oil consumed by microbes far more than thought earlier


October 21st, 2010 - 4:03 pm ICT by ANI
Washington, Oct 21 (ANI): According to new research, the amount of oil consumed by microbes living at the bottom of the Gulf of Mexico may be far more than previously thought."Because of ... Read more...

Posted in Health Science |

Scientists decode genomes of sexually precocious fruit flies


September 17th, 2010 - 4:27 pm ICT by ANI
London, Sept 17 (ANI): Scientists have deciphered how lowly fruit flies bred to rapidly develop and reproduce actually evolve over time.The findings by UC Irvine researchers contradict the long-held belief that sexual ... Read more...

Posted in Health Science |

Why love makes you dump a couple of your closest friends


September 16th, 2010 - 6:18 pm ICT by IANS
London, Sep 16 (IANS) Ever been dumped by a friend embarking on a romance? It may be due to the limited number of people we can have as close and intimate friends. ... Read more...

Posted in Sci-Tech |

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