Marine Biology is the scientific study of organisms in the ocean and other saltwater environments. It encompasses a variety of fields, including ecology, zoology, and microbiology, focused on understanding the life forms found in marine habitats, such as oceans, coral reefs, and coastal areas. Marine biologists research the biology, behavior, interactions, and ecology of marine species, ranging from microscopic phytoplankton to large marine mammals. This field also examines the physical and chemical properties of marine environments, as well as the impacts of human activities on marine ecosystems. Marine biology plays a crucial role in conservation efforts, biodiversity studies, and understanding the effects of climate change on marine life.