Some biologists study plants, others study microbes, and some study fungi, such as mushrooms. But if you want to study living things that move a bit faster, then major in zoology. Zoologists study animals with and without backbones, from worms, insects, and mollusks to fish, birds, and, of course, mammals.
If you choose this major, you’ll study the whole organism. But you’ll also look at its parts, from the chemical makeup of its body to its cells and organs. In addition, you’ll study whole populations of species and the ways animals adapt to their environments.