Do you like animals? Would you like to help the environment? You might like to be a biologist. A biologist studies living things. Biologists study much more than just animals. Living things include plants, mold, and cells -- and much more! Biologists study how living things affect their environment. They study how the environment affects living things. Marine biologists study plants and animals that live in the ocean. Some cell biologists study cells, the smallest living part of a living thing. Some biologists might work in zoos or aquariums. .....