In recent years, tens of thousands of male walruses have begun coming ashore along the Chukchi Sea in late summer, with an especially dramatic congregation often forming near the village of Point Lay. Scientists speculate the growing phenomenon—where up to 40,000 animals have been counted in one day—is in direct response to the reduction and late freeze-up of sea ice offshore. While of great interest to scientists and Native residents, the Point Lay haul-out is off-limits to visitors and aircraft. For more information, contact the marine mammals office of the U.S. Fish and Wildlife Service.