most can swim alot of mammals that can swim are dogs
Most likely, not by choice. Most mammals can swim, and most don't do it by choice.
Aquatic or semi-aquatic? I'm pretty sure most mammals can swim, but I wouldn't say that most mammals are aquatic. In fact, I think most animals can swim (excluding a few bugs, etc.)
Dolphins, Porpoises, Whales, Dugongs, Manatees, Hippos, Otters, Seals, Walruses are mammals that are very good at swimming. Most mammals can swim to some degree but there are some that like to swim and others that don't like to swim - like domestic cats. Domestic cats can swim, but they are very unhappy about it. Tigers, that are another cat, love being in water and swim well. Did you know that elephants can swim? They can cross lakes, rivers and sea inlets.
Mammals travel according to their species. A few fly, some swim, most will walk, hop or run.
Mammals get around by walking, swimming or flying. Most mammals walk to get around, except for bats (which usually fly), and seals, whales, and dolphins, which swim.
Not all mammals can swim, and many choose not to. Cats, while known to avoid water, can be taught to swim. Mammals that are not known to swim are gorillas (although not proven unable to do so) and most armadillos (though at least one species can float and paddle). Orangutans, though instinctively not swimmers, can be taught to swim.
Aquatic mammals are mammals that can swim and live in water if necessary.
Otters and polar bears are two mammals that swim extremely well underwater.
they go for a swim
a lot
Sharks are fish. Fish swim in 'schools'. Whales and dolphins are mammals. These swim in 'pods'.
Humans and chimps are the only mammals that have to be taught how to swim. All other mammals are natural swimmers. Most amphibians can swim, and some reptiles, but reptiles like to be kept dry. Only some birds can swim. Pelacans, Segals, and other birds around water can sit on top of the water, but I think segals can dive under water for food.