In addition to differentiation by species, zoology also encompasses other types of research, such as animal physiology, behavioral ecology, evolutionary biology and ethology, the study of animal behavior.
Public health is personal. Public health professionals focus on preventing disease and injury by promoting healthy lifestyles. They implement educational programs, develop policies, administer services, conduct research, and regulate health systems to achieve these goals.
The basic goals and duties of health educators are the same, but their jobs vary greatly depending on the type of organization in which they work. Most health educators work in medical care settings, colleges and universities, schools, public health departments, nonprofit organizations, and private business.