There are many endangered mammals in the ocean due to large boats. Three examples of these animals are the Hawaiian Monk Seal, the Beluga Whale and the Manatee. Boats aren't sea mammals' only threat, though. Other things like pollution, too much fishing, and habitat loss dangerously affects them. Researchers are trying to save these poor creatures, and many people are trying to raise money for them. They can also be badly hurt by natural disasters, such as tsunamis, and hurricanes. Unfortunately, a major threat of sea mammals are us; humans.