Re: Briefing Document: The British National Identity Scheme

On Tue, 03 Apr 2007 01:45:28 +0100, Dirk Bruere at NeoPax
<dirk.bruere@xxxxxxxxx> wrote:

abelard wrote:

i have some vague remembrance of a four cone bird or simian
from a report a while back...
but i've not heard of a gm version....

http://science.slashdot.org/article.pl?sid=07/03/24/1832259

thanx....

looks interesting...between all this maybe it's time i got an item out
on it....
your link leads by steps to this....which is approximately what i
remembered....


http://www.post-gazette.com/pg/06256/721190-114.stm
"....birds, amphibians and reptiles have been for eons."
[i can't remember if this was 'all' of those groups]

Those creatures have long had four-color vision, but a key difference
is that their fourth type of color detector is in the high-frequency
ultraviolet range, beyond where humans can see.

In fact, that finding allowed scientists to figure out recently why
the males of some species of birds did not appear to have brighter
plumage than the females, Dr. Neitz said.

The problem was in the observers, not the birds, he said. When those
species were viewed through ultraviolet detectors, the males had
markedly different feathers than the females."



regards...

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