Tuesday, November 30, 2010

Animals hybrid extraordinary six

ligers,tigonsandgrolarbears,ohmy!Takealookatsomeoftheseotherworldlyhybridanimalsandyou"llrealizethepossibilitiesareendless. thoughtheyrarelyoccurinnature,individualsfromdifferentbutcloselyrelatedspeciesdooccasionallymate,andtheresultisabiologicalhybridanoffspringthatsharestraitsfrombothparentspecies.Youmayhaveheardofthemysterioussheep-pigcreature,butitturnsoutthatoneisntatruehybrid.Herearesixbizarre,buttrulyuniquehalf-breeds. (photo:wikicommons/gnu)zebroidsazebroidistheoffspringofacrossbetweenazebraandanyotherequine,usuallyahorseoradonkey.Therearezorses,zonkeys,zonies,andahostofothercombinations.Zebroidsareaninterestingexampleofhybridsbredfromspeciesthathavearadicallydifferentnumberofchromosomes.Forinstance,horseshave64chromosomesandzebrahavebetween32and44(dependingonspecies).Evenso,naturefindsaway. �(photo:jasondouglas/wikicommons/publicdomain)savannahcatssavannahcatsare--contrarytopopularbelief--fromacoastaltowningeorgia.Butwhattheyareiswhatyougetfrommixingyoureverydaydomesticcatwithanafricanservalcat.Historiansbelievethefirstonewasbredsometimeinthemid1980sbyacatbreederin,ofallplaces,pennsylvania.Theinternationalcatassociationfirstrecognizedthecatin1996.Thehybridcatcannowbepurchasedorperusedincopiesof"savannahsillustrated"magazine. �(photo:aliwest44/flickr)ligersligersarethecrossofamalelionandafemaletiger,andtheyarethelargestofalllivingcatsandfelines.Theirmassivesizemaybearesultofimprintedgeneswhicharenotfullyexpressedintheirparents,butareleftuncheckedwhenthetwodifferentspeciesmate.Somefemaleligerscangrowto10feetinlengthandweighmorethan700pounds.Ligersaredistinctfromtigons,whichcomefromafemalelionandmaletiger.Variousotherbigcathybridshavebeencreatedtoo,includingleopons(aleopardandalionmix),jaguleps(ajaguarandleopardmix),andevenlijaguleps(alionandjagulepmix). �(photo:markinterrante(akapinhole)/flickr)wholphinsacrossbetweenafalsekillerwhaleandanatlanticbottlenosedolphin,wholphinsarehybridsthathavebeenreportedtoexistinthewild.Therearecurrentlytwoincaptivity,bothatsealifeparkinhawaii.Thewholphinssize,color,andshapeareintermediatebetweentheparentspecies.Eventheirnumberofteethismixed;abottlenosehas88teeth,afalsekillerwhalehas44teeth,andawholphinhas66. �(photo:viainhabitots.Com)grolarbearstheoffspringofagrizzlybearandapolarbear,agrolarbearisonebeastyoudontwanttomeetinthewoods.Interestingly,unlikemanyhybridanimalsonthislist,grolarbearsareknowntooccurnaturallyinthewild.Someexpertspredictthatpolarbearsmaybedriventobreedwithgrizzlybearsatanincreasedfrequencyduetoglobalwarming,andthefactthatpolarbearsarebeingforcedfromtheirnaturalhabitatsonthepolarice. �(photo:viareadthesmiths.Com)beefalobeefaloarethefertileoffspringofdomesticcattleandamericanbison.Crossesalsoexistbetweendomesticcattleandeuropeanbison(zubrons)andyaks(yakows).Thenamegiventobeefalomightbethemostsuggestive,sincethebreedwaspurposelycreatedtocombinethebestcharacteristicsofbothanimalswithaneyetowardsbeefproduction.Ausdastudyshowedthatbeefalomeat,likebisonmeat,tendstobelowerinfatandcholesterol.Theyarealsothoughttoproducelessdamagetorange-landthancattle.Bryannelsonisaregularcontributortomothernaturenetwork,whereaversionofthispostoriginallyappeared.Morefrommothernaturenetwork13extinctanimalsfoundalive15cuteanimalsthatcouldkillyou10animalsthatarebadfortheenvironment11animalsthatmateforlifetopninelonelyanimalscheckoutyahoo!Greenontwitterandfacebook. U.S. Army K-9 team ends yearlong deployment in Kosovo

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