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Unit2Readingcomprehension1-7DBACDCC8.verysensitivetoredlight9.keepingawaypossiblepredators10.atfullspeedHomeListeningI.1.Onlyrecently2.Someresearchersbelievethatthejumbosquidmovefurthernorthbecausethenorthernoceansarewarming,whileothersthinkthatdecliningnumbersofpredatorshaveallowedthemtoexpandtheirterritories.3.Itistheabilityofthejumbosquidtoradicallychangeitscolorfromreddish-purpletopurewhite.4.Becauseredisnoteasilyvisibletofishandothercreaturesinthedarknessoftheoceandepths.5.Itsenormoussize.6.Theytookittoaresearchcenter.II.(1)1925(2)two(3)2004(4)six(5)secondIII.1.Squidareamongtheleastunderstoodofallinvertebrates.2.Theyarealsonowabletocategorizemanyofthembygenus,amoregeneralcategoryofanimaltypes,aswellasbyspecies.3.Recently,somehaveappearedasfarnorthasAlaska,raisingquestionsabouttheeffectsofglobalwarmingonthespecies.4.Theredcolorisusefultothesquidwhenhuntingforfoodsinceredisnoteasilyvisibletofishinthedarknessoftheoceandepths.5.Theword“colossal”wasusedtodistinguishitfromitssmallerrelative,thegiantsquid.AudioscriptTheJumbovs.ThecolossalSquidSquidareamongtheleastunderstoodofallinvertebrates.Forcenturiessailorshavereportedsquid-likemonsterssolargethattheywouldbecapableofdestroyingentireships.Onlyrecently,however,havebiologistsbeenabletodeterminethetruthaboutthesesstrangecreatures.Theyarealsonowabletocategorizemanyofthembygenus,amoregeneralcategoryofanimaltypes,aswellasbyspecies.Twosuchenormoussquidarethejumbosquidandthecolossalsquid.TheJumboSquidThejumbosquid,alsoknownastheHumboldtsquid,hasbeensightedinthePacificOceanfromthetipofSouthAmericatothecoastofCalifornia.Recently,somehaveappearedasfarnorthasAlaska,raisingquestionsabouttheeffectsofglobalwarmingonthespecies.Someresearcherssuggestthattheyaremovingfurthernorthbecausethenorthernoceansarewarming,whileothersbelieverthatdecliningnumbersofpredatorshaveallowedthejumbosquidtoexpendtheirterritories.Oneunusualfeatureofthejumbosquidisitsabilitytoradicallychangeitscolorfromreddish–purpletopurewhit
