Simplify the following text for a Grade 7 native English-speaking person.
Original: There are two living species referred to as `` mink '' : the European Mink and the American Mink .
Simplified: The mink is an aggressive mammal that is adapted to a semi-aquatic life . Mink live in swamps , rivers , marshes , lakes and streams in North America , Europe , and the far west of Asia .