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질문 내용 :
there has long been a superstition among seamen that dolphins will save drowning men by pushing them to the surface, or protect them from sharks by surrounding 1)them defensively
biolofists have poited out that, however intelligent 2) they may be,it is probably a mistake to belive that dolphins have their own morives in saving human life. when 3)they have pushed ashore an unconscious human being, it is much more likely that 4)they have done it out of curiosity, as in riding the waves made by a ship. if they have prothected humans from sharks, it may have been because curiosity attracted 5)them and because the smell of a possible meal attracted sharks

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