(完整版)地球脉动第二季第五集中英字幕文字版

OnequarterofallthelandonEarth地球上四分之一的土地iscoveredbyasingle,remarkabletypeofplant.覆盖着唯一一种伟大的植被Almostindestructible,itcangrowtwofeetinaday...它们几乎坚不可摧一天可以长高六十厘米Andbetallenoughtohideagiant.连巨型动物都能藏匿其中Thatplantisgrass,那就是草本andtheworlditcreatesistrulyunique.草本植物构建出来的世界独具一格ThegrassinnorthernIndiaisthetallestontheplanet,印度北部的草是地球上长得最高的hometosomeofthemostimpressivecreaturestotreadtheEarth.这里是众多神奇生物的家园Thesearethegoodtimes,现在正当好时候butinjustafewmonths,allthisfreshgrowthwillbegone,可再过几个月这些青草就会消失andtheanimalswillbeforcedtomoveon.动物们将被迫迁徙Thatisthewaythingsareongrasslandsacrosstheplanet.地球上的草原都是如此Acycleofabundance,destructionandrebirth重复着富足消亡重生的循环thataffectseverycreaturethatliveshere.从而影响着栖息在这里的所有生命ThelargestgrasslandonEarth,thevastEurasianSteppe,辽阔的欧亚草原区是地球上最大的草原地带stretchesonethirdofthewayaroundourplanet.覆盖距离达到地球周长的三分之一Springrainhasbroughtfreshgrass,andwithit,newlife.青草随春雨而生也带来了新生命ArelicfromtheIceAge,ababySaigaantelope,一种冰川时代存活至今的生物高鼻羚羊幼崽justthreehoursold.出生才三小时Hisonlycompany,histwin.陪伴它的只有它的孪生兄弟Untiltheycanstand,在它们能站起来之前theirmotherhasleftthemhiddeninthegrass.母亲会将它们藏在草丛中Theyshouldbesafe,aslongastheyremainquiet.这样应该很安全只要保持安静Forthesecalves,theclockisalreadyticking.对这两只小羊来说时间紧迫Theirherdwillsoonbemovingon,羚羊群很快就要离开seekingthefreshestnewgrass.去寻找最新鲜的草场Theirlankylegsareasuresign高鼻羚羊四肢瘦长thatthey'rebuiltforalifeonthemove.预示着它们一生都将奔波在路上Saigaalwaysgivebirthtotwins,高鼻羚羊总会产下孪生幼崽sotheirnumbersgrowrapidlyjustwhengrassisplentiful.这样能够在草源充足时迅速繁衍Theirbizarrelyshapednosecandetectfreshgrowth它们的鼻子长相奇怪却能够勘测到fromhundredsofmilesaway.几百公里外的青草长势Theyoungtwinswillnowbeginthenomadiclife这两只小羊即将与其他草原动物一样theysharewithmostanimalsontheworld'sopenplains.开始辽阔草原上不断迁徙的生活Grasslandsoccurwhererainistoosporadicforforeststoexist.降雨量不足以养育森林时就会出现草原Therainthatagrasslandneedstosurviveforayear草原生长所需的年降雨量mightarriveallatonce.可能会一次来临Stormslikethesecanrelease12inchesofrainin24hours.这样的暴雨在24小时内能达到300毫米降雨量Notmuchfunifyou'reoutinit.淋起来可不好受Eventuallytheearthcan'tsoakupanymore,最终土壤无法继续吸收雨水andthegrasslandundergoesaradicalchange.草原也完全变了样子Manyplantswoulddrownhere,butgrassesthrive.许多植物会被淹死而草本却会茁壮生长Theygrowsofast,它们长得飞快theirleavesquicklyriseabovethewaterandintothesunlight.茎叶迅速伸出水面沐浴在阳光下HereinsouthernAfrica,在南非watertransformsoneofthemostremarkablegrasslandsonEarth,降水能让世界上最奇特的草原之一改头换面theOkavango.奥卡万戈三角洲Everyyear,5,000squaremilesofgrasslandareflooded.每年都有近一万三千平方公里的草原被水淹没Foroneprideoflions,thisposesamajorproblem.对于狮群来说这成了最大的问题Theremaybeplentyofpreyaround,虽然猎物众多butlionsstruggletorunitdowninwater.但狮子并不擅长在水中捕猎Thepridehasthree-month-oldcubs.狮群中有三个月的幼崽They'veneverseenwaterbefore.它们以前从未见过水Iftheirmothersdon'tmakeakillsoon,如果母狮们短时间内捕不到猎物thecubsmightnotsurvivetheweek.这些幼崽可能撑不过这周Butfuelledbytheflood,受洪水滋养theeruptionofgrassattractsnewpossibleprey.蓬勃生长的青草吸引来新的猎物Buffaloarriveinherds2,000strong.数量超过两千头的水牛群接踵而至Powerful,aggressiveandunited,强大好斗抱团前进they'rethemostdangerousanimalalioncanface.狮子能遇到的动物中水牛是最危险的Thebiggestbullsdon'trun.体型最大的公牛不会逃跑They'resimplytoohugetobescaredoflions.他们仗着身形庞大并不惧怕狮子At900kilos,heweighsmorethanallfivelionessescombined.重达九百公斤他比五头母狮加起来都重Thepridedohavenumbersontheirside,虽然狮群占据了数量优势butonesweepofhishornscouldbedeadly.但如果被水牛角扫到可能会直接丧命Onedistractsthebullupfront,一头母狮正面诱敌whilehersistersattackfrombehind.她的姐妹从后方进攻Thecatsmustsomehowtopplethebuffalo,母狮们必须想办法压倒公牛butwithswampunderfoot,theycan'tgetanytraction.但沼泽太过湿滑脚底无法借力Thebullisweakening,公牛逐渐虚弱butthelionsaretiring,too.但狮群也露出疲态It'snowabattleofwillasmuchasstrength.现在是体力与毅力的双重考验Tolive,thebullmustsomehowshakeoffthelioness.要想活下去公牛必须想办法甩掉母狮Thebulliswounded,这头公牛受了伤butthankstohistwo-inch-thickhide,hewillrecover.但幸亏有五厘米厚的牛皮他会慢慢痊愈