Yes, and the blue whale is the biggest living mammal on Earth.
Yes
Marine mammals are a group of ocean life that includes larger animals such as whales, dolphins, and seals. These animals are warm-blooded and have adapted to life in the ocean, relying on swimming as their primary means of locomotion.
they swim in the sea
Dolphins and Porpoises
The larger animals that swim are called cetaceans.
whale
They must swim to the surface to breathe because their lungs require air and not water.
There are billions of animals in the oceans. They range from single-celled plankton all the way up to the great whales, largest animals on Earth. In between, you can find animals like fish, mollusks, corals, barnacles, squid and octopus, eels, sea snakes, seals, dolphins and porpoises, and even some marine iguanas and birds swim in the ocean for food.
No it is beause of the dissolved salt in them
yes whales are safer to swim with because whales don't bite
Like all Ocean animals, they, of course, Swim XD
The swim Lol :D