Gray Tree Frog (Hyla versicolor)

[Billy]

i like the yellow cooler on its legs do all grays have that

All the ones that I've seen do, so probably. That is a very beautiful individual. Nice pic by the way

[Wulf]

Yes, all Grays (Hyla chrysoscelis and Hyla versicolor) have the yellow/orange on their legs, males and females. A little trivia fact about the species: chrysoscelis from Greek means golden legs. The yellow bands do not usually come the full way around the legs, the color on mine, and any I've seen are on the underside and usually not visible if they are resting or have their legs tucked up. The male in the first photo is puffed up chirping, so you can see a bit of yellow where he is partly standing up there. Science's best guess on the colors, is to deter/confuse predators with a flash of bright color when they have to jump away or evade predators.