chicken

Chickens, including animals that are easy to adapt to anywhere, as long as the availability of abundant food. Currently domesticated chickens are easy to tame, making it easier to maintain. The unique characteristic of chickens is their sex system which is regulated by a hormonal system. If there is a disturbance in the physiological function of the body, then the hen can change sex to male because adult chickens still have ovotestis that are dormant (not moving) and can be active again at any time.