While not all mammals are expert swimmers, the vat majority of mammals possess the ability to swim to some degree
Here is a list of mammals that canswim
Some rhinos are capable swimmers, including Asian rhinos and greater one-horned rhinos
Elephants are strong swimmers that enjoy being in water. They have dense bones, thick skin, and a layer of subcutaneous fat that helps them stay afloat
Horses have a natural instinct to swim when they are in deep water. They paddle through the water in a similar motion to trotting
Sloths are good swimmers, able to move through water three times faster than they can on land