Explorable: Defense Mechanisms
https://explorable.com/defense-mechanisms
REPTILIAN DEFENSE MECHANISMS by James Chao
https://prezi.com/da6ksose686b/reptilian-defense-mechanisms/
What is Camouflage in Animals: Definition & Examples
http://study.com/academy/lesson/what-is-camouflage-in-animals-definition-examples-quiz.html