Biologists study living things and where they live. "Living things" means much more than just animals. Biologists study algae. They study slime molds and fungi. They study plants. They study animals of all kinds, from sponges to mammals. Marine biologists study plants and animals that live in the ocean. Cell biologists study cells, the smallest part of a living thing. Some biologists might work in zoos. They keep the animals healthy. Some forensic biologists work with police. They find and explain evidence. They help solve crimes. Many biologists work in health professions. Doctors, nurses, and lab workers all must have a .....