Those interested in stopping the outbreak of illnesses among animals may consider taking courses in veterinary epidemiology. Students can learn about the biology causing certain diseases to thrive. Scholars may also discover how to develop strategies for keeping the animal population healthy.

A PhD, or Doctorate of Philosophy, is the highest degree awarded in many academic fields. Generally requiring a research project and dissertation, as well as several years of study, a doctorate degree qualifies the holder as an expert in a chosen field.