largest mammal in the ocean
The biggest animal in the ocean, and in the world, is the blue whale (Balaenoptera musculus), a sleek, light-colored giant.
Confidence votes 6. The largest sea mammal is the blue whale. So the blue whale will be the largest. I am not quite sure what the other 9 are, but I believe some whales can be quite big, but you can get whales that are really small aswell. the top 10 largest sea mammels may not all be whales. By the way just in case you didn't know, sharks are not mammels they are fish.