The study of animal behavior begins with understanding how an animal’s physiology and anatomy are integrated with its behavior. This lecture briefly present on two types of animal behavior; first type is instinctive behavior: it is something the animal is born knowing how to do. Examples include fish swimming and geese migrating. The other type is learned behavior. Learned behavior is learned by experience and sometimes from a parent. Examples include lions and leopards learning how to hunt by watching and practicing with their