The Ross Sea Marine Protected Area, established in 2016, covers an area of 1.55 million square kilometers in the Ross Sea region of Antarctica. It is the largest marine protected area in the world.

Plastic pollution is the leading cause of marine pollution, with an estimated 8 million tons of plastic entering the oceans each year. Plastic can harm marine life by entanglement, ingestion, and leaching of toxic chemicals.

Overfishing is the practice of fishing a species to the point of collapse, where the population is unable to replenish itself. Overfishing can be caused by a variety of factors, including increased fishing effort, improved fishing technology, and habitat destruction.

Sea turtles are the most vulnerable marine species to bycatch, with an estimated 250,000 sea turtles killed each year as a result of being caught in fishing gear. Bycatch can cause injury, death, or reproductive impairment in sea turtles.

Coral bleaching is the process by which coral reefs are bleached and die due to rising ocean temperatures. When ocean temperatures rise, corals expel the symbiotic algae that live in their tissues, causing them to turn white. If the stress is prolonged, the corals will eventually die.

Coral reefs are the most vulnerable marine ecosystem to climate change. Coral reefs are sensitive to changes in ocean temperature and acidity, and rising sea levels can also damage coral reefs. Climate change is causing coral reefs to bleach and die at an alarming rate.

Reef creation is the practice of creating artificial reefs to attract marine life. Artificial reefs can be made from a variety of materials, including concrete, rock, and recycled materials. Reef creation can help to restore damaged reefs, create new habitat for marine life, and attract fish for recreational fishing.

The narwhal is a marine mammal known for its long tusks. The tusks are actually elongated canine teeth, and they can grow to be up to 10 feet long in males. Narwhals use their tusks for hunting, fighting, and social signaling.

Primary production is the process by which marine organisms produce oxygen through photosynthesis. Photosynthesis is the process by which plants and other organisms use sunlight to convert carbon dioxide and water into glucose and oxygen. Primary production is the foundation of the marine food web.

Coral reefs are known for their high biodiversity. Coral reefs are home to a wide variety of marine organisms, including fish, invertebrates, and algae. Coral reefs provide food, shelter, and breeding grounds for many marine species.

Reduce is the term for the practice of reducing the amount of waste produced. Reducing waste can be done by buying less stuff, using reusable products, and composting food scraps.

Dolphins are known for their intelligence and social behavior. Dolphins live in pods, and they communicate with each other using a variety of sounds. Dolphins are also known for their playful behavior.

Sustainable fishing is the practice of using fishing methods that minimize the impact on the marine environment. Sustainable fishing methods include using selective fishing gear, avoiding overfishing, and protecting marine habitats.

Mangroves are known for their ability to filter pollutants from the water. Mangroves are trees that grow in coastal areas, and their roots help to trap sediment and pollutants. Mangroves also provide habitat for a variety of marine organisms.

Marine conservation is the practice of protecting marine ecosystems. Marine conservation can be done through a variety of methods, including establishing marine protected areas, regulating fishing, and reducing pollution.