An estimated 35,000 walruses are pictured are pictured hauled out on a beach near the village of Point Lay, Alaska, 700 miles northwest of Anchorage, in this September 2014 handout photo. According to scientists, the congregation of Pacific walruses — one of the largest ever — was prompted by a lack of sea ice which the walruses use to rest in Arctic waters, according to scientists. REUTERS/Corey Accardo/NOAA/NMFS/AFSC/NMML/Handout via Reuters (UNITED STATES) – Tags: ANIMALS ENVIRONMENT SCIENCE TECHNOLOGY) THIS PICTURE WAS PROCESSED BY REUTERS TO ENHANCE QUALITY. AN UNPROCESSED VERSION WILL BE PROVIDED SEPARATELY FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS – RTR48KFJ