A green frog (Lithobates clamitans or Rana clamitans) on a rock beside a pool. It looks almost as though its head was dipped in a can of green paint. I was going to call it Prince Charming, but perhaps it's Princess Charming? Which led me to realize that I have no idea how to tell the females from the males by sight. A quick trip to Wikipedia revealed that in Green Frogs "the male tympanum is twice the diameter of the eye, whereas in females, the tympanum diameter is about the same as that of the eye, and males have bright yellow throats". So, this, it seems, is Princess Charming.