Gavin said:

> That paper happens to be sitting on my desktop...

The full text is just a click away for anyone in
the mood to give it a read.

http://www.neurobiologie.fu-berlin.de/menzel/Pub_AGmenzel/Riley,Greggers,Smith,R
eynolds,Menzel_Nature_2005.pdf

I don't need to "comment" on any of this, as the
paper (actually, a "letter" to Nature) speaks for itself.

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