News tagged with nocturnal owl
Eagle Owls Send Sweeter Valentines When Moon Is Full
(PhysOrg.com) -- Placing a tracking device on breeding owls with a wing span large enough to cover eight humans lined up side-by-side, is not a walk in the park. But, funded by a grant from the Spanish Ministry ...
Jan 21, 2010 |
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Small evolutionary shifts make big impacts, study finds
(PhysOrg.com) -- In the developing fetus, cell growth follows a very specific schedule. In the eye's retina, for example, cones -- which help distinguish color during the day -- develop before the more light-sensitive ...
May 20, 2009 |
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Search results for nocturnal owl
The ABCC9 of sleep: A genetic factor that regulates how long we sleep
A collaborative European study led by LMU researchers has shown that ABCC9, a known genetic factor in heart disease and diabetes, also influences the duration of sleep in humans. This function is evolutionarily conserved ...
Medicine & Health / Psychology & Psychiatry
Nov 28, 2011 |
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Brain control? Shining light on pupil constriction
(PhysOrg.com) -- You’ve seen it on television: A doctor shines a bright light into an unconscious patient’s eye to check for brain death. If the pupil constricts, the brain is OK, because in mammals, ...
Nov 02, 2011 |
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Moonstruck primates: Owl monkeys need moonlight as much as a biological clock for nocturnal activity
An international collaboration led by a University of Pennsylvania anthropologist has shown that environmental factors, like temperature and light, play as much of a role in the activity of traditionally nocturnal ...
Sep 03, 2010 |
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Exposure to early evening sunlight in spring creates teenage night owls
In the spring, later sunset and extended daylight exposure delay bedtimes in teenagers, according to researchers at Rensselaer Polytechnic Institute's Lighting Research Center (LRC).
Jul 26, 2010 |
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New insight into primate eye evolution
Researchers comparing the fetal development of the eye of the owl monkey with that of the capuchin monkey have found that only a minor difference in the timing of cell proliferation can explain the multiple anatomical differences ...
May 18, 2009 |
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'Gecko vision': Key to the multifocal contact lens of the future?
Nocturnal geckos are among the very few living creatures able to see colors at night, and scientists' discovery of series of distinct concentric zones may lead to insight into better cameras and contact lenses.
May 07, 2009 |
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Owls' dawn and dusk concerts promote visual communication
Reporting in the online, open-access journal PLoS ONE April 8, Vincenzo Penteriani and Maria Delgado of the Estacion Biologica de Doñana, Spain, describe the evolution of white throat badges in association with d ...
Apr 08, 2009 |
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Internal clocks keep all living things ticking -- even you
Like kids taking apart a fine Swiss watch, scientists are laboring to understand what makes the biological clock that's inside every living creature tick.
Biology /
Feb 08, 2009 |
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Study finds foul owls use faeces to show they are in fine feather
Some years ago, within the Department of Conservation Biology of the Estación Biológica de Doñana (EBD-Consejo Superior de Investigaciones Científicas; Seville, Spain), a recently established group (colloquially named the ...
Biology /
Aug 20, 2008 |
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Huge genome-scale phylogenetic study of birds rewrites evolutionary tree-of-life
The largest ever study of bird genetics has not only shaken up but completely redrawn the avian evolutionary tree. The study challenges current classifications, alters our understanding of avian evolution, and provides a ...
Jun 26, 2008 |
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List of search results for nocturnal owl
