Ocean life refers to the diverse range of organisms that inhabit the world's oceans. This includes everything from tiny plankton to large mammals like whales. Oceans are home to various ecosystems, such as coral reefs, deep-sea environments, and coastal areas, each supporting unique species and interactions. Marine life plays a crucial role in the Earth's ecosystem. Fish, sea turtles, and sharks are just a few examples of the many animals that rely on the ocean for food and habitat. Additionally, phytoplankton produce a significant portion of the Earth's oxygen, highlighting the importance of ocean health for all life on the planet.