The scientific study of animals provides the knowledge necessary for understanding life on Earth, from the workings of a single organism to the dynamics of entire populations. This field addresses global challenges such as species conservation, disease ecology, and the sustainable management of natural resources. Professionals dedicated to this research contribute to preserving biodiversity and maintaining ecosystems. Their work involves scientific investigation to observe, document, and analyze animal life, informing policy and action globally.
Defining the Zoologist and Wildlife Biologist
The terms zoologist and wildlife biologist are the two most recognized professional titles for scientists who study animals, though their focus areas differ. A zoologist studies animals across all environments, focusing on anatomy, physiology, genetics, development, and behavior at the organismic level. These professionals frequently work in controlled settings like university laboratories, museums, and zoos.
A wildlife biologist concentrates on animal populations and their interaction with natural habitats, applying an ecological perspective. Their goal is the conservation and management of wild species, assessing how human activity affects population health. This work frequently requires extensive fieldwork to collect data and inform management plans for government agencies.
Specialized Fields of Animal Study
The discipline of zoology is subdivided into specialized fields. Professionals dedicate their careers to a specific classification of animal life, allowing for concentrated research and a deeper understanding of unique biological systems.
Mammalogist
A mammalogist studies mammals, which are vertebrates characterized by mammary glands, hair or fur, and three middle ear bones. This field encompasses diverse subjects, including the behavioral ecology of primates, the migratory patterns of whales, and the physiology of bats.
Ornithologist
Ornithology is the study of birds, covering mating rituals, vocalizations, the mechanics of flight, and global migration routes. Professionals in this field may analyze feather structure, track nesting success, or monitor bird populations in response to habitat changes.
Herpetologist
A herpetologist researches reptiles and amphibians, including snakes, lizards, turtles, frogs, and salamanders. This area of study is relevant for conservation, as many amphibians are sensitive bio-indicators of environmental health due to their permeable skin.
Ichthyologist
An ichthyologist studies fish, investigating the more than 33,000 species of bony, cartilaginous, and jawless fish inhabiting marine and freshwater systems. Their work ranges from classifying new species to examining the effects of pollution on aquatic food webs.
Entomologist
Entomology focuses on the study of insects, the most diverse group of animals on the planet. Entomologists play a significant role in agriculture, medicine, and forensic science, studying pest control, disease vectors, and the ecological function of pollinators.
Ethologist
An ethologist specializes in the study of animal behavior in natural conditions, observing instinctual actions and learned responses. They seek to understand the evolutionary basis of behaviors like communication, aggression, and social structure across species.
Essential Education and Training Requirements
A career in animal science requires a minimum of a bachelor’s degree for entry-level positions. Students typically pursue degrees in zoology, wildlife biology, ecology, or natural sciences, building a core understanding of biological principles. Candidates must supplement their science coursework with quantitative subjects like statistics and data modeling, which are necessary for analyzing large datasets.
Advancement to research leadership or university teaching requires further academic commitment, usually a master’s or doctoral degree. Master’s programs are often needed for management roles in government or non-profit sectors, while a Ph.D. is the standard for directing specialized research. Professional training outside the classroom is also valued, including internships, fieldwork, and volunteer opportunities. These experiences provide practical skills in animal handling and scientific methodology, making a candidate competitive in the job market.
Typical Work Environments and Day-to-Day Responsibilities
Professionals in animal science operate in a wide variety of settings reflecting their specializations and employers. Work environments range from controlled indoor spaces, such as academic research labs and museum collections, to extensive outdoor locations like remote forests and government-managed lands. Zoologists may spend time in zoos or aquariums overseeing animal husbandry, while wildlife biologists are frequently stationed at field camps to monitor populations.
Day-to-day responsibilities blend scientific investigation, data management, and communication. Scientists design and conduct experimental studies, which involve collecting biological specimens, tracking animals using GPS technology, or taking blood samples. Analyzing the gathered data requires proficiency in statistical software to model population dynamics or assess human impact on habitats. Much of the work is also devoted to report writing, preparing scientific papers for publication, and communicating findings to stakeholders.
Related Careers Working with Animals
Several related careers offer direct engagement with animals for those interested in welfare and conservation but not the path of a research scientist. These roles focus more on care, management, or enforcement and require different training than pure scientific research.
- A Veterinary Technician works under the supervision of a veterinarian, assisting with medical procedures, collecting laboratory samples, and providing pre- and post-operative care in a clinical setting.
- An Animal Trainer or Behaviorist applies principles of learning and behavior modification to animals in settings ranging from private homes and shelters to specialized research facilities.
- Conservation Officers are law enforcement professionals who patrol natural areas, enforce hunting and fishing regulations, and investigate wildlife crimes.
- An Environmental Educator focuses on creating and delivering programs for the public at nature centers, museums, or schools, translating scientific concepts into accessible lessons about local wildlife and ecosystem stewardship.

