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Bachelor's Degree. A four-year bachelor's degree in zoology or a related field is the basic requirement to find work as a zoologist. Other suitable majors include wildlife biology, ecology or general biology. Typical undergraduate classes for prospective zoologists include chemistry, physics, cellular biology, ecology and animal anatomy.
Some zoos require only a high school diploma or GED to work as a zookeeper. However, a bachelor's degree can boost your standing in the eyes of employers and distinguish you from other candidates. Aspiring zookeepers typically pursue a degree in a biology-related field such as zoology, animal science or a life science.ome zoos require only a high school diploma or GED to work as a zookeeper. However, a bachelor's degree can boost your standing in the eyes of employers and distinguish you from other candidates. Aspiring zookeepers typically pursue a degree in a biology-related field such as zoology, animal science or a life science.