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Gray Tree Frog

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description Gray Tree Frog Overview

The Gray Tree Frog (Hyla versicolor) is a North American species capable of surviving freezing temperatures by producing glycerol as a cryoprotectant, and is notable for being a cryptic tetraploid species.

help Gray Tree Frog FAQ

How does the Gray Tree Frog survive freezing winter temperatures?

The North American Gray Tree Frog survives being frozen solid by producing high levels of glycerol in its blood. This chemical acts as a powerful cryoprotectant, functioning like biological antifreeze to prevent the frog's cells from bursting.

What is the scientific name of the Gray Tree Frog?

It is scientifically known as Hyla versicolor, which refers to its remarkable ability to change its skin color. Despite this adaptation, it remains a cryptic species that is visually identical to Cope's Gray Tree Frog.

How can you tell the difference between Hyla versicolor and Cope's Gray Tree Frog?

Visually, the two species are completely indistinguishable in the field. The most reliable way to tell them apart is by listening to their distinct mating calls, or through genetic testing, because Hyla versicolor is a tetraploid species with twice the chromosome count.

Are Gray Tree Frogs poisonous to humans or pets?

No, they are not poisonous, but their skin secretes a mild toxin that can irritate human eyes or lips if touched. This secretion is purely a defense mechanism to deter predators like snakes and birds.

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