Polarbearsareoneofthemostpopularanimalsforpeople.Polarb...
问题详情:Polarbearsareoneofthemostpopularanimalsforpeople.Polarbearsaredifferentfromeveryotherbearintheworld.Thisisbecausepolarbearshavewhitefur.However,therearemanyfactsaboutpolarbearsthatpeoplemightn...