When an animal, such as a bird or turtle moves from one area or habitat to another at different times of year (depending on the seasons).

A type of animal which feeds on plants (e.g. grasses or algae).

Sea animals that stay in one place their whole life. Some coral produce a colourful skeleton (which is also called coral) that will remain after they die. Coral are often found grouped in large areas called coral reefs, and they are related to sea anemones and jellyfish.

A long line of jagged rock, coral, or sand just above or below the surface of the ocean. An artificial reef is when a human-made structure creates a reef on the sea floor.

The management and protection of resources and life on Earth.

A plant similar to grass that grows in shallow waters close to land. Seagrasses can grow into huge underwater meadows. They provide a place for young fish and other small sea creatures to live and are an important source of food for larger animals like turtles.