News tagged with house sparrows

Why you should celebrate World Sparrow Day

For the past five years there has been a growing movement to recognise March 20 as World Sparrow Day – a day to celebrate the house sparrow (Passer domesticus) with art, poems, stories and events like office ...

dateMar 20, 2015 in Plants & Animals
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Progeny of old parents have fewer offspring

Reproduction at old age involves risks that may impact one's own life and may impose reduced biological fitness on the offspring. Such evidence, previously obtained in humans and other taxa under laboratory ...

dateMar 09, 2015 in Evolution
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Elaborate plumage due to testosterone?

(PhysOrg.com) -- In many bird species males have a more elaborate plumage than females. This elaborate plumage is often used to signal body condition, to intimidate rivals or to attract potential mates. In ...

dateOct 21, 2011 in Plants & Animals
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Ugly Betty forced to aim for Average Joe

Less-pretty female house sparrows tend to lower their aim when selecting a mate. Addressing the lack of studies on condition-dependency of female mate choice, researchers writing in the open access journal ...

dateAug 26, 2010 in Evolution
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