Simplify the following text for a Grade 5 native English-speaking person.
Original: The Arctic is home to millions of seals , which become prey when they surface in holes in the ice in order to breathe , or when they haul out on the ice to rest . Polar bears hunt primarily at the interface between ice , water , and air ; they only rarely catch seals on land or in open water .
Simplified: When Polar bears hunt , they often wait at holes in the ice , where the seals come up to breathe .