地球脉动-两极之间Planet-Earth-From-Ploe-to-Pole

North北极熊Polarbears.极昼Polarday北极苔原Arctictundra北美驯鹿caribou第一页，共11页。Notenoughenergyreachesgroundtoenabletreestogrow亚寒带针叶林Subarcticconiferous远东豹Amurleopards温带阔叶林temperatebroadleavesVariousbirds热带丛林jungle第二页，共11页。海豹Seals大白鲨Greatwhites海洋ocean雄帝企鹅MaleEmperorPenguins极夜polarnightSouth第三页，共11页。RepresentativeCreatures第四页，共11页。Polarday

极昼

It’smarch.AndlightreturnstohighArctic,aPolarbearstirsfromherden.Heremergencemarksthebeginningofspring.Andthelittlebearscometotheirmothertogetfood.Theirmotherthathasnoteatenfor5monthsandhaslosthalfherbodyweightconvertsthelastofherfatreservesintomilkforherbabies.Temperature-30.Thebabiesstillneedtoliveintheshelter.Thesunwilldissolvetheice,whichwillhinderthebeartohuntitsfood(seal).Nearlyhalfofthebabybearswilldieinthefirstyearinthebrokenice.

Polarbears北极熊

第五页，共11页。Arctictundra北极苔原NorthernCanada’swildfrontierEveryyear3millionsofcariboumigrateacrosstheArctictundra(北极苔原）.Thisisthelongestoverlandmigrationmadebyanyanimal.Someherdstravelsover2000milesayearinsearchoffreshpastures.Thisisthelongestoverlandmigrationmadebyanyanimal.Therearewolvesinhangerschemingtocatchthenewlyborncalves.Thestrategyisthatrunningdirecrlyattheherdtomaketheminpanicfirst,andthentrytocapturetheseparatedtheherd.Andnowit’seasiertotargetanindividual.

caribou北美驯鹿Midsummerontundraandthesundoesnotset.Astheselatitudesthesun’sraysareglancing.Andnotenoughoftheirenergyreachesthegroundtoenabletreestogrow.第六页，共11页。temperatebroadleaves温带阔叶林

TheAmurleopard-therarestcatintheworld,syblolizethefragilityofournatureheritage.Thereareonly40Amurleopardsleftinthewild.Andthatnumberisfalling.Thecatshasbeenpushedtotheveryedgeofextinctionbyhuntingandthedestructionoftheirhabitat.

Amurleopards远东豹Allanimals,rareorcommon,ultimatelydependfortheirenergyonthesun.

第七页，共11页。JungleInthetropicsthesun’sraysstriketheearthheadon,sothejunglegrowssovigorouslyand

supportssomuchlife.Thisforestcoversonly3percentoftheplanet’ssurface,butitcontainsmorethan50percentofallitsplantsandanimals.Thereare42differentspeciesofbirdsofparadiselivinginthegreatislandofNewGuinea,eachmorebizarrethanthelast.Birdsofparadise第八页，共11页。

OceanSummeristhetimeofplentyandit’snowthatthesealsstarttobreed.

Seals海豹Greatwhites大白鲨ElephantsBuffalo水牛Inadryseason,thousandsofelephantshavestartedtotravelindesperatesearchforwater.AllacrossSouthAfricaanimalarejourneyingforthesamereason.第九页，共11页。

polarnight极夜MaleEmperorPenguinsarefacingthenearestthatexistsonplaneEarth.WinterinAntarctica.It’scontinuousdark.Andtemperaturesdroptominusseventydegreescentigrade.ThePenguinsstaywhenallothercreatureshavefled.Becauseeachguardsatreasure:asingleeggrestedonthetopofitsfeet.Andkeptwarmbeneaththedownybugleof