Chameleons are the most famous color-changing animals, but there are plenty of other animals that possess this talent.

Exotic pet enthusiasts often attempt to keep Meller's chameleons as pets. However, they are highly susceptible to even the slightest level of stress and are very difficult to care for in captivity.

Cheryl meets Casper the chameleon who hasn't been showing his colours as much as he should be. Cheryl investigates what the reason for his unhappiness might be.