Steven K. Maldonado schrieb:
> How are you to know if stereotypical digging is exclusively from an instinct to dig
> burrows, or if it's because of the Gerbils visual perception of its immediate
> surrounding?
>
I think, the one does not exclude the other. Why shouldn't this assumed burrowing
instinct be not triggered by such visual stimuli too?

Ehrenfried
--
http://home.wtal.de/ehr/gerbils/behavior.htm

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