title: Seasonal occurrence of the northern elephant seal, Mirounga angustirostris, on San Nicolas Island, California.
mesh_terms: D000818:Animals; D002140:California; D010872:Caniformia / Q000502:physiology*; D005260:Female; D008297:Male; D011153:Population; D011247:Pregnancy; D012098:Reproduction; D012621:Seasons