第4节

  【】sh</p>

  attrablebeesandthe</p>

  birdsheseedsfarandiltheh</p>

  hadbeeveredhgreenpastures,orlaydarkuhe</p>

  shadoeofthefishestoo</p>

  hadbeguhesea,andtheyhadleaedhoobreathe</p>

  phibious,</p>

  eansthattheyareabletolivehequaleaseontheland</p>

  andihefirstfroghtellyou</p>

  allaboutthepleasuresofthedoubleexistenphibian.</p>

  osideofthealsgraduallyadapted</p>

  theelvesreaolifeonland.sobecareptiles</p>

  creaturesheysharedthe</p>

  silenove</p>

  fasterthroughthesoftsoil,theyirovedupontheirlegs</p>

  andtheirsizeincreaseduntiltheedh</p>

  gigantishehandbooksofbiologylistunder</p>

  thenasofiegalosaurusandbrontosaurus</p>

  obethirtytofortyfeetlongandouldhave</p>

  playedhelephantsasafullgroplayshherkittens.</p>

  sooftheersofthisreptilianfalybegantolivein</p>

  thetopsofthetrees,orethanahundred</p>

  feethigh.theynoloheirlegsforthepurpose</p>

  oftovequicklyfrobr></p>

  branchtobrandsotheygedapartoftheirskin</p>

  intoasortofparahedbethesidesof</p>

  theirbodiesaoesoftheirforefeet,andgradually</p>

  theyveredthisskinnyparachuteade</p>

  theirtailsintoasteeringgearareetotreeand</p>

  developedintotruebirds.</p>

  thenastrahinghappened.allthegiganticreptiles</p>

  diede.knohereason.perhaps</p>

  itate.perhapsthey</p>

  hadgronorwalknor</p>

  craheystarvedtodeathhinsightbutnothin</p>

  reachofthebigfesandtrees.everthecause,the</p>

  llionyearoldpireofthebigreptileswasover.</p>

  theobeoupiedbyverydifferent</p>

  creatures.theyhedesdantsofthereptilesbutthey</p>

  the</p>

  ``aeorthebreastsofthether.ode</p>

  sallstheseanils``als.theyhadshedthe</p>

  scalesofthefish.theydidnotadoptthefeathersofthebird,</p>

  buttheyveredtheirbodiesaalshowever</p>

  developedotherhabitsheirraceagreatadvantage</p>

  overtheotheranils.thefeleofthespecies</p>

  carriedtheeggsoftheyounginsideherbodyuntiltheywere</p>

  hatchedande,had</p>

  lefttheirchildrenexposedtothedangersoflda,</p>

  aalskepttheiryoung</p>

  foralongtiaeredtheeywere</p>

  stilltooies.inthisheyoung</p>

  alsuetosurvive,because</p>

  theyleaednythingsfroheirthers,asyouwillknow</p>

  ifyouhaveeveratteagherkittenstotake</p>

  selvesandhooheirfadhoo</p>

  e.</p>

  butofthesealsitellyouchforyou</p>

  knoheysurroundyouonallsides.theyare</p>

  yourdailypanionsireetsandinyourho,andyou</p>

  iliarusinsbehindthebarsofthezoological</p>

  garden.</p>

  ahepartingofthean</p>

  suddenlyleavestheendlessproblylivingand</p>

  dyiuresandbeginstousehisreasontoshapethe</p>

  destinyofhisrace.</p>

  onealinparticularseedtosurpassallothersin</p>

  itsabilitytofindfoodaer.ithadleaedtouseits</p>

  forefeetforthepurposeofholdingitsprey,andbydintof</p>

  praeithaddevelopedahandlikeclaerable</p>

  attetsithadleaedhoobalahehe</p>

  bodyuponthehihisisadiffit,hevery</p>

  childhastoleaaneanracehasbeen</p>

  doingitforoverallionyears.</p>

  thiscreature,halfapeandhalfsuperiorto</p>

  both,beakea</p>

  livingineveryoved</p>

  aboutingroups.itleaedhoakestrangegruntsto</p>

  anyhundreds</p>

  ofthousandsofyearsitbegantousethesethroatynoises</p>

  forthepurposeoftalking.</p>

  thisayhardlybelieveit,wasyour</p>

  first``nlikeaor.</p>

  ourearliestaors</p>

  weknoen.wehave</p>

  neverseentheirpictures.inthedeepestlayerofclayofan</p>

  anesfoundpiecesoftheirbones.</p>

  theselayburiedadstthebrokeonsofotheranils</p>

  thathavelongsincedisappearedfrohefaceoftheearth.</p>

  anthropologistsleaedstistsetheirlivesto</p>

  thestudyofheanilkingdoave</p>

  takenthesebonesandtheyhavebeeorenstructour</p>

  earliestaorshafairdegreeofay.</p>

  thegreatgreatgrandfatherofthehunracewasavery</p>

  uglyandunattractiveal.heuch</p>

  sllerthanthepeopleoftoday.theheatofthesunandthe</p>

  bitinghelderhadlouredhisskinadark</p>

  broostofhisbody,hisaraoo,</p>

  hlong,arsehair.hehadverythinbut</p>

  strongfingersadehishandslooklikethoseofankey.</p>

  hisforeheadhejawofa</p>

  alsteethbothasforkandknife.he</p>

  esofthe</p>

  rulingvoloesoke</p>

  andtheirlava.</p>

  helivedinthedablaessofvastforests,asthe</p>

  pygesofafricadotothisveryday.the</p>

  pangsofhungerheateraherootsofplantsor</p>

  hetooktheeggsaanangrybirdaheohis</p>

  oeralongandpatientchase,</p>

  heallwilddogorperhapsa</p>

  rabbit.theseheraovered</p>

  thatfoodtastedbetterooked.</p>

  duringthehoursofday,thispritivehunbeing</p>

  prolookingforthingstoeat.</p>

  desdedupoh,hehidhiswifeand</p>

  hischildreninaholloeheavyboulders,</p>

  ...</p>