Original: A few animals have chromatic response, changing color in changing environments, either seasonally (ermine, snowshoe hare) or far more rapidly with chromatophores in their integument (the cephalopod family).
Simplified: A few animals have a chromatic response, they change color in changing environments, either seasonally (ermine, snowshoe hare) or far more rapidly like the chameleon and the cephalopod family.