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The Raelian Movement
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Source: http://www.newscientist.com/article/dn22255-brain-scans-show-how-crows-distinguish-friend-from-foe.html
for those who are not afraid of the future : http://www.rael.org
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Source: http://www.newscientist.com/article/dn22255-brain-scans-show-how-crows-distinguish-friend-from-foe.html
Brain scans show how crows distinguish friend from foe
- 20:00 10 September 2012 by Sara Reardon
You can run from a crow that you've wronged, but you can't hide. Wild crows remember human faces in the same way that mammals do.
Crows can distinguish human faces and remember how different people treated them, says John Marzluff of the University of Washington in Seattle.
To work out how the crows process this information, Marzluff had members of his team wear a latex mask as they captured 12 wild American crows (Corvus brachyrhynchos). The crows learned to associate the captor's mask with this traumatic experience. While in captivity, the crows were fed and looked after by people wearing a different mask.
After four weeks, the researchers imaged the birds' brains while they were looking at either the captor or feeder mask. The brain patterns looked similar to those seen in mammals: the feeder sparked activity in areas involved in motivation and reward, whereas the captor stimulated regions associated with fear.
The result makes sense, says Kevin McGowan of Cornell Lab of Ornithology in Ithaca, New York. Crows don't mind if humans are in their habitat – but they need to keep a close eye on what we do.
Journal reference: Proceedings of the National Academy of Sciences, DOI: 10.1073/pnas.1206109109
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"Ethics" is simply a last-gasp attempt by deist conservatives and
orthodox dogmatics to keep humanity in ignorance and obscurantism,
through the well tried fermentation of fear, the fear of science and
new technologies.
There is nothing glorious about what our ancestors call history,
it is simply a succession of mistakes, intolerances and violations.
On the contrary, let us embrace Science and the new technologies
unfettered, for it is these which will liberate mankind from the
myth of god, and free us from our age old fears, from disease,
death and the sweat of labour.
Rael
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