Letmetellyousomethingaboutsharks.Sharksareamongtheoldes...
问题详情:Letmetellyousomethingaboutsharks.Sharksareamongtheoldestanimalsintheworld.Thereareoverthreehundredfiftydifferentkindsofsharksintheworld.Mostsharksareabouttwometerslongandliveintheoceans.Ashark...