| Animals are amazing, part 7, 417, 537, 412 |
[09 Jul 2007|11:18pm] |
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[Transcribed from an entry I made in my paper journal]
When researchers asked a middle-aged parrot to describe an empty tray during a counting test, the bird spontaneously answered, "none." Understanding the abstract concept of zero is quite a hoop to fly through; humans can't do it until age 3 or 4.
(original source: shit, I forgot to write it down, but it was out of a magazine, possibly Psychology Today.)
More in-depth article:
http://www.world-science.net/exclusives/050701_parrotzero1frm.htm
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