[Oberon] Active Cells

Douglas G. Danforth danforth at greenwoodfarm.com
Wed Jan 1 20:49:48 CET 2014

Not true.
Look up the hiding behavior of blue jays, magpies, and ravens,
and you will see that they can store something like 20 items
(acorns) in varied spots and recover them later.

On 1/1/2014 9:42 AM, eas lab wrote:
> ]> Apparently apes can count to 3, but birds only to 2.
>> Evidence that birds can form abstract concepts such as same v. different
>> has been provided by Alex, the African Grey Parrot. Alex was trained
>> by animal psychologist Irene Pepperberg to vocally label more than 100
>> objects of different colors and shapes and which are made from different
>> materials. Alex could also request or refuse these objects ('I want X')
>> and quantify numbers of them.
> This bird can usualy only manage three-and-half.
> My example of the birds inability to REMEMBER that there were more than
> (x x) persons, doesn't mean they can't associate:
> (x x x x x x x)  with
> (a b c d e f g)  when they can see both sets <on the same screen> like
> ETHO allows you to.
> --
> Oberon at lists.inf.ethz.ch mailing list for ETH Oberon and related systems
> https://lists.inf.ethz.ch/mailman/listinfo/oberon

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