News tagged with male birds
Sons or daughters? Female finches use head colour to decide
Mar 19, 2009 |
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(PhysOrg.com) -- Researchers studying the behaviour of the stunningly coloured Gouldian finch have made an exciting discovery - females of the species deliberately overproduce sons when breeding with a male ...
Long, sexy tails not a drag on male birds
Mar 12, 2009 |
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The long tails sported by many male birds in the tropics look like they're a drag to carry around and a distinct disadvantage when fleeing predators, but experiments by University of California, Berkeley, ...
Singing to females makes male birds' brains happy
Biology /
Oct 03, 2008 |
4.7 / 5 (3) |
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The melodious singing of birds has been long appreciated by humans, and has often been thought to reflect a particularly positive emotional state of the singer. In a new study published in the online, open-access journal ...
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Nuclear science to fight sleeping sickness
11 hours ago |
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The International Atomic Energy Agency on Friday announced an agreement to help African nations battle the tsetse fly, the main carrier of parasites that causes sleeping sickness with its bites.
Ecologists sound out new solution for monitoring cryptic species
16 hours ago |
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Ecologists have at last worked out a way of using recordings of birdsong to accurately measure the size of bird populations. This is the first time sound recordings from a microphone array have been translated into accurate ...
Ecological speciation by sexual selection on good genes: Is speciation adaptive?
Nov 26, 2009 |
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Darwin suggested that the action of natural selection can produce new species, but 150 years after the publication of his famous book, 'On the Origin of Species', debate still continues on the mechanisms of speciation. New ...
Variable Temperatures Leave Insects wtih a Frosty Reception
Nov 25, 2009 |
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(PhysOrg.com) -- For the first time, scientists at The University of Western Ontario have shown that insects exposed to repeated periods of cold will trade reproduction for immediate survival.
A RANK insider resolving the enigma of the fever chart
Nov 25, 2009 |
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Mammals have evolved a complex system for controlling bone remodeling. Babies require calcium for healthy bones and they obtain it from their mother's milk. Nursing mothers release calcium from their bones. Surprisingly, ...
Etiologic factors of gastric cardiac adenocarcinoma among men in Taiwan
Nov 25, 2009 |
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The gastric cardiac adenocarcinoma (GCA) is a very rare disease. In recent decades, however, the incidence of the GCA has increased dramatically in many Western countries. An increasing trend in GCA is also observed in municipal ...
Biology, training and profit sharing make best traders
Nov 25, 2009 |
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(PhysOrg.com) -- Cambridge researchers have identified a group of traders consistently able to outperform the market, even during the credit crisis.
Study explores violent world of raptors
Nov 25, 2009 |
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A journey that started with a box of bird feet carried three Montana State University graduate students into the gruesome world of raptors and led to their findings being published in a prominent journal.
Opposites attract: Monkeys choose mating partners with different genes
Nov 24, 2009 |
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The world's largest species of monkey 'chooses' mates with genes that are different from their own to guarantee healthy and strong offspring, according to a new research study.
Probing life's extremes in Yellowstone (w/ Podcast)
Nov 24, 2009 |
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(PhysOrg.com) -- Idaho National Laboratory biologist Frank Roberto squats on a bare, gravelly patch of ground in Yellowstone National Park's rolling backcountry. At his feet, scalding water churns in a mustard-yellow ...
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