We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleCall Usage Learning in Gray Seals (Halichoerus grypus).AuthorsShapiro, Ari D.; Slater, Peter J. B.; Janik, Vincent M.PublicationJournal of Comparative Psychology, 2004, Vol 118, Issue 4, p447ISSN0735-7036Publication typearticleDOI10.1037/0735-7036.118.4.447