A vivarium is a controlled environment designed to house living organisms, such as plants, animals, or microorganisms. It allows researchers and enthusiasts to study these organisms in a setting that mimics their natural habitat. Common types of vivaria include aquariums for fish, terrariums for reptiles, and greenhouses for plants. These spaces are essential for scientific research, education, and conservation efforts. By providing a safe and regulated environment, a vivarium helps scientists observe behaviors, study ecosystems, and even breed endangered species. Overall, vivaria play a crucial role in understanding and preserving biodiversity in our world.