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Re: WHEN CASSOWARIES ATTACK
On Fri, 17 Aug 2001 email@example.com wrote:
> dislike dogs and will attack them without provocation, presumably
> because feral dogs and dingos often prey on cassowaries.
Do we think this is a learned response, then? It could be a fixed action
pattern: "see four-legged beast and attack it." If so, the
selective force for this behavior would be what: extinct mega-fauna, or
dingoes (is 5,000 years? long enough to evolve such a
Aggressiveness, _per se_ must be innate.
I wonder if aggressiveness is variable among continental vs. NG
species? Did NG have the amount of megafauna that Australia did? Dingoes?