European tree frogs (Hyla arborea) are found across Europe, northern Africa and Asia. A recent experiment found that European tree frog tadpoles are capable of rapid color change, and this change is reversible. Also, the color of the rearing environment of the tadpoles did not affect their ability to change color.

Art by @misterkawaii_art

[Edited by Isabelle McDonald]

Reference:

Mirč, M., Vukov, T., Kijanović, A., & Kolarov, N. T. (2023). Effects of background color on pigmentation, morphological traits, and behavior in the European tree frog (Hyla arborea, Hylidae, Anura) tadpoles. Contributions to Zoology, 92(2), 112–129. https://doi.org/10.1163/18759866-bja10040