squirrels are not real animals. The government, in conjunction with the oil companies, discovered that acorns can be processed into a cheaper and more efficient fuel. But since they didn't want any testing done where anybody would notice, they genetically bred squirrels, and made it so that they'd gather acorns and drop them at certain posts for later retrieval. They're using the acorns to make fuel that is cheaper for them, but they aren't making it any more efficient for us to use.