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yorkg
yorkg

I am personally very fond of Flowers for Algernon. Though it's technically a short story, I feel it deserves to be at least mentioned.

Perhaps the critter does so to a) be safe from predators—being on a 1000-lb beast seems pretty safe, and b) give a great vantage point to spot potential prey (and maybe mask what might usually give prey warning—little creatures might not worry about huge lumbering beast sounds, but if the genet were stalking them