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Biologists with an interest in dogs and wildlife might study the origin, behavior, diseases, and life processes of wild canids, such as wolves in Yellowstone National Park or endangered African wild dogs. The findings of these professionals help us understand more about our own domestic dogs. Ecologists study the relationships among organisms and between organisms and their environments. In wild dogs, that might involve observing the effects of such factors as population size, the abundance or absence of prey, or the encroachment of humans into the dogs’ territory.

Other biologists work in research and development of new veterinary drugs, treatments, and diagnostic tests. Research using techniques such as recombining DNA has led to the production of new and safer vaccines for dogs. Biotechnology researchers isolate genes and determine their function. This work leads to the discovery of genes associated with specific diseases and inherited traits, such as certain types of cancer. Biological research can have commercial applications in the pet-food industry, as well. A career in biology may lead to managerial or administrative positions, such as planning and overseeing programs for testing pet foods and drugs or directing activities at municipal zoos.

National Park Service wildlife biologist Doug Smith carries a tranquilized wolf in Yellowstone National Park.