Posts Tagged ‘Gray Tree Frog’

I was very excited last Thursday when a passing photographer pointed out this little tree frog to me last Thursday as I was walking along a trail at Huntley Meadows Park. I think that it is a Gray Tree Frog (Hyla versicolor), through there is a chance that it could be a Cope’s Gray Tree Frog (Hyla chrysoscelis). According to the Virginia Herpetologcal Society, “Our two native gray treefrogs are identical in appearance. In the field the only two ways to distinguish H. chrysoscelis from H. versicolor is by their call and in some cases geographic location.”

The green and gray pattern on its body looks unusual to me and makes it look like the frog has lichen on its back. The Smithsonian National Zoo & Conservation Biology Institute website notes that, “The gray tree frog’s scientific name is Hyla versicolor, which comes from the Latin for “variable color.” It is named for its ability to alter its skin color based on the time of day and surrounding temperature. The skin becomes much lighter at night and darker during the day.”

I was starting to feel a little cold as I was observing the tree frog and wondered what would happen to it in the winter. I was shocked to discover that Gray Tree Frogs hibernate during the cold weather. The Smithsonian website mentioned above states that, “The gray tree frog hibernates in the winter by taking refuge in trees. It survives freezing temperatures by producing glycerol to “freeze” itself while maintaining interior metabolic processes at a very slow rate.” Wow!


Gray Tree Frog

Gray Tree Frog

© Michael Q. Powell. All rights reserved.


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