Speaking of interesting animal adaptations, consider the "cuteness" adaptation. It seems to me that one significant evolutionary advantage is big eyes, small nose, and floppy ears.
Does anyone really care to save the Striped-back snail? Or any other sort of snail? But threaten to kill a bunny and you get all sorts of attention (and contributions. Scroll down to see just how much this threat has netted this guy thus far). Or club a few baby seals and get the wrath of the rest of the world unleashed on your country (and from some hair care product site?).
Survival of the cutest.
(As for foxes, Gene, have a look at the picture I took of the fox that trotted in to the courtyard at my apartment. Yes, I would post this photo directly if I knew how.)