两篇选一篇吧(后一篇较长) 　　WithhumanbeingsonEarthsincethen,wecontinuetoevolveatthesametimehasbeenhurtthoselovelyanimals.Theydidnotatfault,theyareonlyinaccordancewiththelawsofnatureliveinpeace.Butsincetheexistenceofmankind,theirhomesbecomeincreasinglysmall.Someanimalshaveevenbecomeextinct. 　　Intheextinctionofanimal,thethylacineistheworst.Thylacineinalongtimeagotoliveinthevastprairie,theyhavebeenveryhappy,carefree.Sincethearrivalofhumanbeingshavechangedtheirlives.Duetothelargenumberofhumanenclosure,livestockgrassmakeslessandlesschangetomanyherbivorestomovetoothergrasslands.Thisherbivorousanimalstoeatthewolfbag,thereisnofood.Theystealhumananimals.Farmerswouldhatethewolffromthebag,seeakillingone,onthislastonewildthylacinewasalsokilled.Whenpeopleshouldbeawareofextinctthylacine,theprotectionoftheparkbeganlastathylacine,itthylacineonly48daysbeforethefinaldays.And48dayslater,theForeverthylacinedisappearedfromtheEarth,theForever! 　　Ofcourse,notallanimalsareextincthumankilling,somechangesintheenvironmentarenotsuitedextinction.However,theextinctionofsomeanimals,humanbeingshaveanunshirkableresponsibility.Sinceancienttimeshumanbeingshavebeencrueltothoseanimalsalone,humandeprivationoftheirrighttolive. 　　Nowseemstohavebeenawareoftheextinctionofananimalhazards.Inordertomakemoney,whatpeoplearewillingtodoso,theysellfuranimals,shoppingmalls,themeatofanimalssoldtorestaurants.Butwecannotshirkallresponsibilitytotheheadsoftraders,consumersalsohavetheresponsibility,ifthereisnoconsumerdemandthenthetraderswillnottaketherisk.Humanbeingsarestilleatingwildanimals.Forexample:thesnake.Iftheextinctionofthesnakes,ratswouldwantonlybreeding,thenhowdowe...... 　　Soeachhasitsbiologicalsignificanceoftheexistence,theyareinthenaturallawofsurvival.Ifabrokenfoodchain,thenanotherwillwantonlybreedinganimals,andevenathreattohumanity,webearinmindtheprotectionofanimals.Theprotectionofanimalsistoprotecthumanbeingsthemselves!