title: Some observations on the play behavior of the steller sea lion (Eumetopias jubata).
mesh_terms: D000374:Aggression; D000818:Animals; D001522:Behavior, Animal; D010872:Caniformia; D005260:Female; D006702:Homing Behavior; D006801:Humans; D008297:Male; D009034:Mother-Child Relations; D010988:Play and Playthings; D011247:Pregnancy; D012919:Social Behavior