Bokermannohyla alvarengai

Bokermannohyla alvarengai is a species of frogs in the family Hylidae.

Distribution and status
It is endemic to Brazil. Its natural habitats are subtropical or tropical high-altitude grassland, rivers, and rocky areas. It is threatened by habitat loss.

Temperature regulation
Bokermannohyla alvarengai is able to lighten its skin colour when hot (and darken when cold), making the skin reflect more heat and so avoid overheating.