【英语翻译Whalesarefoundinopenseasthroughouttheworldandoccasionallyincoastalwaters,aswell.Certainspeciesmigrate,whileothersremainyearroundinthesamehabitats.Theskinofwhalesisusuallyblack,gray,tanandwhite.Theirskintex】
英语翻译
Whalesarefoundinopenseasthroughouttheworldandoccasionallyincoastalwaters,aswell.Certainspeciesmigrate,whileothersremainyearroundinthesamehabitats.Theskinofwhalesisusuallyblack,gray,tanandwhite.Theirskintextureissmooth,butlikeothermammals,whaleshavehairatsomepointintheirdevelopmet.Inadutlsit'sustallyfoumdonlygntheheadarea,andinsomespdciesonlyinthefetus.Whalesstoreenergyinanunderskinlayeroffat,orblubber.theabilitytostore"fuel"intheformofblubberhelpswialessurviveduringlongperiodsofstarvation.Exceptforhavinghorizontaltailsthatmoveupanddown,ratherthansidetoside,whaleshavetiegeneralshapeoffish,thoughincertainspeciestheheadisgreatlyenlarged.Overmillionsofyears,hindlimbsremain.Whalesbreathethroughlungs,withsomelargespeciesremaimingunderwaterforaslongastwohours.(1)whatdosethdtextmianlytellus?(notmorethan10words)