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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>