英语翻译

Dolphinsarenotfish,butwarm-bloodedanimals.Theyliveingroups,andspeaktoeachotherintheirownlanguage.Inthistheyarelikeotheranimals,suchasbeesandbirds.Butdolphinsareverydifferentfromalmostalllandanimals.Theirbrainisnearlythesamesizeasourown,andtheylivealongtime---atleasttwentyorthirtyyear.

Likesomeotheranimals,dolphinsusesoundtohelpthemfindtheirwayaround.Theyalsomakethesesoundstotalktoeachotherandtohelpthemfindfood.Wenowknowtheydonotusetheirearstoreceivethesesounds,butthelowerpartofthemouth,calledthejaw.

Strangely,dolphinsseemtolikeman,andforthousandsofyearstherehavebeenstoriesaboutthedolphinanditsfriendshipwithpeople.

Thereisastoryaboutsailorsinthe19thcentury.InadangerouspartoftheseaoffthecoastofNewZealand,theylearnttolookforadolphincalledJack.From1871to1903Jackmeteveryboatintheareaandshowedittheway.Thenin1903apassengeronaboatcalledThePenguinshotandwounded(伤害)Jack.Herecoveredandfornineyearsmorecontinuedtoguideallshipsthroughthearea---exceptforThePenguin.

Today,somepeoplecontinuetokilldolphins,butmanycountriesoftheworldnowprotectthemandintheseplacesitisagainstthelawtokillthem