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.
Health educators encourage individuals to take more responsibility for learning about the behaviors that keep them healthy or that help them acquire an improved health status. Health educators facilitate voluntary adaptations of behavior conducive to health. 1  Assess needs for health education programs. Be prepared to tell a potential employer what a health educator can do for them, and how you might fit into their setting. 2  Show your portfolio. 3  Network through your internship and volunteer experiences. 4  Many entry level jobs are not advertised. 5  Job announcements often are circulated from within.