An old paper but maybe worth a read...
"reflectance increases with temperature in some, but not all, chameleon species. While color change is clearly important for crypsis, it also has a potential role in thermoregulation
reflectance increases with temperature in some, but not all, chameleon species"...
https://compphys.bio.uci.edu/bennett/pubs/117.pdf
"reflectance increases with temperature in some, but not all, chameleon species. While color change is clearly important for crypsis, it also has a potential role in thermoregulation
reflectance increases with temperature in some, but not all, chameleon species"...
https://compphys.bio.uci.edu/bennett/pubs/117.pdf