+At this, some novice students of historical mammology inquire: why be secretive? Surely if the squirrels were to pool their knowledge together, and build on each other's successes, they could accumulate ever-greater mastery over their environment, and possibly even spark their world's ascension?!
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+To which it is replied: evolution wouldn't necessarily select for that for that. Survival opportunities tend to be rivalrous: two squirrels can't both eat the same nut, or hide in the same one-squirrel-width hole. Or as it was put in a joke popular amongst the west-valley ground squirrels (according to Harrod's habilitation thesis on pre-intelligence in the days of auld lang syne): I don't need to outrun the _predator_, I just need to outrun my _conspecifics_.
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+[...]