Are human beings animals?
A Chameleon has the unique property of changing hues to match the color of the surroundings for self-protection. Rattlesnakes can bury most of their body in sand and soil. This not only protects it but also gives it better access to food. There are many animals, such as geckos, beetles etc., which have learnt to deal with the environment and the enemy in the longtime fight of life and death. In order to survive, good concealment has become the most critical factor.