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1、1PLANETEARTH011ATTENB0R0UGH:Ahundredyearsago,therewereone-and-a-halfbillionpeopleonEarth.2Now,oversixbillioncrowdourfragileplanet.3Butevenso,therearestillplacesbarelytouchedbyhumanity.4Thisserieswilltakeyoutothelastwildernessesandshowyoutheplanetanditswildlifeasyouhavenevers
2、eenthembefore.5Imagineourworldwithoutsun.MaleemperorpenguinsarefacingthenearestthatexistsonplanetEarth,winterinAntarctica.6It’scontinuouslydarkandtemperaturesdroptominus70degreescentigrade.7(HEAVYWINDBL0WING)Thepenguinsstaywhenallothercreatureshavefledbecauseeachguardsatreas
3、ure,asingleeggrestingonthetopofitsfeetandkeptwarmbeneaththedownybulgeofitsstomach.8Thereisnofoodandnowaterforthemandtheywillnotseethesunagainforfourmonths.9Surely,nogreaterordealisfacedbyanyanimal.10AsthesundepartsfromtheAntarctic,itlightenstheskiesinthefarnorth.11It’sMarch,
4、andlightreturnstothehighArctic,sweepingawayfourmonthsofdarkness.12Apolarbearstirs.Shehasbeeninherdenthewholewinter.13Heremergencemarksthebeginningofspring.14Aftermonthsofconfinementunderground,shetoboggansdowntheslope,perhapstocleanherfur,perhapsforsheerjoy.15Hercubsgazeouta
5、ttheirbrightnewworldfortheveryfirsttime.16Thefemalecallsthem,butthissteepslopeisnottheeasiestplacetotakeyourfirststeps.17(WHIMPERING)Buttheyarehungryandeagertoreachtheirmother,who’sdelayedfeedingthemonthisspecialday.218Nowsheluresthemwiththepromiseofmilk,theonlyfoodthecubsha
6、veknownsincetheywereborn,deafandblind,beneaththesnowsometwomonthsago.19Theirmotherhasnoteatenforfivemonthsandhaslosthalfherbodyweight.20Nowsheconvertsthelastofherfatreservesintomilkforhercubs.21Thespringsunbringswarmth,butalsoaproblemforthemother.22Itstartstomelttheseaice.Th
7、atiswhereshehuntsforthesealssheneedstofeedhercubsandshemustgettherebeforetheicebreaksup.23Fornow,though,it’sstillminus30degrees,andthecubsmusthavetheshelteroftheden.24It’ssixdayssincethebearsemergedandspringisadvancingrapidly.25Butevennow,blizzardscanstrikewithoutwarning.26B
8、eingsosmall,thecubsareeasilychilledandtheywouldbemorecomfortablerestinginth
