It serves as a haulout site for Pacific walrus. The tusks of a Pacific walrus may attain a length of one meter. The "Boone and Crockett Big Game Record" book has entries for Atlantic and Pacific walrus. He also described the subspecies "Odobenus rosmarus divergens", commonly known as the Pacific walrus. The diet of the Pacific walrus consist almost exclusively of benthic invertebrates (97 percent). Commercial harvesting reduced the population of the Pacific walrus to between 50,000-100,000 in the 1950s-1960s.