When the average person thinks of zoology, they usually think of zoos and/or animals. As mentioned in General Zoology, this topic involves many questions. “What is life? How are various types of animals similar or different in structure, internal processes, and ways of life? How do animals carry out their activities? How are the many types related to each other? How does man resemble and differ from other living beings? The answers to many of these questions are provided by the science of zoology." (General Zoology, page 3). Although zoology involves animals, the general study of zoology is much more complicated than you might imagine. Zoology is a branch of biology that studies the classification, origins, habitats and behaviors of organisms. Someone who studies zoology is a zoologist and is responsible for learning about new species and their habitats. It's a job that, if mastered, can be one of the most fulfilling and competent careers you can achieve. A zoologist has an extremely long list of tasks, field work and studies that he must complete during his career (“Occupational Profile: Zoologists and Wildlife Biologists”). Although he must study all biological organisms he may encounter, a zoologist has the possibility of expanding into a specific field in which he would like to delve deeper or even specialize (“Zoology”). For example, a mammalogist is a zoologist who specializes in the study of mammals and an ichthyologist is a zoologist who specializes in the study of fish (Storer and Usinger). One of the branches that have become popular is ornithology, the study of birds (Perrins and Harrison). A zoologist must also study life histories, family trees, genetics, diseases, development and migration Wildlife Biologists: Occupational Outlook Handbook. Washington DC: Postal Square Building, 2012. United States Department of Labor. Job Profile: Zoologists and Wildlife Biologists. Minnesota, 2013. Print.."Zoology." Dictionary of American History. 2003. .Storer, Tracy I., and Robert L. Usinger. General zoology. 4th ed. McGraw-Hill Book Company, 1965. Print.Perrins, Christopher and CJO Harrison. Birds: their life, their ways, their world. Pleasantville, NY: The Reader's Digest Association, Inc., 1976. Print.