非洲动物介绍

producer：WhiskeyCheetahAfricanElephantHippopotamusGiraffes-GiraffacamelopardalisDescriptionandCharacteristics:TheCheetahisthefastestlandmammalintheworldandcanreachspeedsof80-100km/h.However,itisonlyabletokeepupthisspeedforashortperiodoftime.Thecheetahhasaslenderbody,asmallhead,andlonglegs,whichmakesitidealforspeed,itisalsotheonlycatwithoutretractableclawswhichallowstheclawstoalwaysbeexposed,makesforbettertractionwhenrunning.Thetailisalsoadaptedtohelpmaintainbalanceathighspeedsandduringquickturns.Thecheetahhasabackgroundcolouroflightgoldenyellow/tan,coveredwithsmall,round,blackspotsonthecheeks,forehead,crown,neck,andlimbs.Theyhaveadistinctiveblacktear-shapedfromthecorneroftheeyetothecornerofthemouthandamane-likeblackstriperunningthelengthoftheirback.Cheetahsdonotroarlikelionsandtigers.Instead,theymakebirdlikechirpingsoundsforcommunicationwithothermembersofthefamilyandtheyhisswhenangeredorthreatenedandpurrloudlywhentheyarecontent.Iftheyarealarmedtheywhineorgrowl.AfricanElephantTheAfricanelephantisthelargestlandmammalonEarth.TherearetwospeciesofAfricanElephant:Africansavanna,(Loxodontaafricana);Africanforest(Africanacyclotis)DescriptionandCharacteristics:TheAfricanElephanthasamarkeddipbetweenitsforeandhindquartersgivingaconcavecurvaturetoitsback.It'searsarelargeandfan-likeandarealsousedtocontrolbodytemperature;bloodcirculatingthroughthelargevesselsintheearsiscooledbyflapping.Theyhaveacutehearing.Largetusksarepresentinbothsexes,theyfirstappearattheageofabouttwoandcontinuetogrowthroughouttheirlives.Elephantsusetusksforpeelingbarkofftrees,diggingforroots,herdingyoung,“drilling”forwaterandsometimesasaweapon.Skinisupto2.5cmthickinplacesHippopotamusPhotobyHansSchoelinkDescriptionandCharacteristics:Therearetwospeciesofhippopotamuses;thePygmyHippowhichisthesmallerspecies,standingaboutwaist-hightoanadulthuman,andtheriverorcommonhippopotamus.Thecommon/riverhippopotamuswhichisworld'sthirdlargestandheaviestlandanimals,weighinguptoabout4,000kg.Bothspeciesofhipposhavebarrel-shapedbodies,shortstockylegs,andsmoothalmosthairlessskin.Theirheadsappearoutsizedwithunusuallybroadmouthsandtheirfacialfeaturesresemblethoseofapig.Hipposhaveashort,tuftedtailHipposhavethinskinthatdiesoutquickly-theysecreteapinkishcolouredoilthathelpsthemkeeptheirskinmoistinthehotAfricanclimate.Hipposspendmostoftheirdaysinthewaterorwallowinginthemud,generallycominguponlandtofeedatnight.RiverhipposareoneofthemostfearedanimalsinsouthernAfrica.ItisclaimedthateveryyearmorepeoplearekilledbythemthanbyanyotherAfricananimalOutofwater,Hipposaresurprisinglyfastrunners;afullygrownriverhippocanrun30km/hforafewhundredyards.Feeding/drinkingHabits:HipposareHerbivores,preferringshortgrassesoftheAfricanplains.Theirmuscularlipsarealmost70cmswidewhichmakesthemextremelyefficientgrazers.Theygenerallyfeedduringthenight,grazingforupto5hoursbeforereturningtothewater.Nubian,reticulated,Rothschild),Masai,Thornicroft),AngolanandSouthAfricanorCape)DescriptionandCharacteristics:TheGiraffeisthetallestofallmammals,onaveragetheyare6fttallatbirth.Theyarewellknownfortheirlongnecks,longlegs,andspottedpatterns;eachgiraffehasit'sownuniquepattern.Giraffeshavesmallhornsorknobsontopoftheirheadsthatgrowtobeaboutfiveincheslong.Theseknobsareusedtoprotecttheheadinfights.Feeding/drinkingHabits:Theirlongneckshelpgiraffeseatleavesfromtalltrees,typicallyacaciatrees.Thetongueofagiraffecanbeaslongas45cm.Iftheyneedto,giraffescangoforseveraldayswithoutwater.Insteadofdrinking,giraffesrelyonremaininghydratedfromthemoisturecontentintheleavestheyfeedon.