- Conservation Biologist: Work to protect endangered species and their habitats.
- Ecologist: Study the interactions between organisms and their environment.
- Zoologist: Study animals and their behavior in their natural habitats.
- Wildlife Biologist: Manage wildlife populations and their habitats.
- Animal Behavioralist: Study the behavior of animals, including their interactions with humans.
- Animal Physiologist: Study the function and structure of animals.
- Parasitologist: study parasites and the diseases they cause.
- Herpetologist: Study amphibians and reptiles.
- Ornithologist: Study birds.
- Mammalogist: Study mammals.
- Geneticist: Study genes and inheritance in animals.
- Paleontologist: Study the fossil record of animals.