One animal who'll benefit is the emperor penguin. About 240,000 of these distinctive-looking birds currently live in the Ross Sea region, but the population has been under threat because of overfishing and ice loss, which is a result of climate change.
Then there's the minke whale - the smallest baleen whale in the world. While minkes don't spend all of their time in Antarctica, thousands migrate down during the summer months to feast on fish and krill. With the sanctuary's "no fishing" rule, minkes will have more food to eat.