I've posted before about how cool speckled rattlesnakes are, and how the individual populations in the different mountain parks around Phoenix have evolved different colorations according the rocks where they live, the better to camouflage themselves. Well, here's the first one I ever saw, at Skyline Park, where there are a lot of gray, cream, and light brown rocks:
Here's a (blurry) picture of one I just saw last weekend at Camelback Mountain, where the rocks are mostly red and brown:
Pretty amazing, huh?
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