PrairiedogsareAmerica'sanswertothemeerkat-small,sociableandexceptionallycute.ThisoffbeatfilmnarratedbyRobBrydontakesustotheWildWestwhereprairiedogsliveinhugecoloniesknownas'towns'.Likemeerkats,theyarecomicaltowatch,butthereisawholelotmoretoprairiedogsthanjustbeingcute-theycantalk.　　For30yearsProfessorConSlobodchikoffhasbeenrecordingtheircallsinresponsetopredatorslikecoyotes,hawksandbadgers.Hebelieveshehasdiscoveredalanguagesecondonlytohumansinitscomplexity.It'saboldclaimbutisheright?Conhasdevisedaseriesofcunningfieldexperimentstohelpprovehispoint.

《地平线》栏目帮你发现宠物猫在猫门以外的生活。这是一个开创性的实验，研究人员给在萨里郡的一个村庄50只猫戴上了标签与GPS项圈，并记录他们的白天黑夜在后院、花园围栏和灌木狩猎和巡逻的行踪。此片开发了猫对这个世界的独特视野。你以为你足够了解自己的宠物猫？其实他们的秘密生活会让你惊讶。

FollowingthecrisisinUkraineandRussia’sinvolvementinSyria,theworldisclosertosuperpowerconfrontationthanatanytimesincetheendoftheColdWar.NowacommitteeofseniorformerBritishmilitaryanddiplomaticfigurescomestogethertowargameahypothetical‘hotwar’inEasternEurope,includingtheunthinkable-nuclearconfrontation.　　TheWarRoomfacesascenariothathashauntedwesternstrategistssincecivilwarbrokeoutinUkraine:potentialRussianmilitaryinvolvementintheBalticStatesofLatviaandEstonia.LikeUkrainethesecountrieshavesizableRussianspeakingminorities,butunlikeUkrainetheyaremembersofNATO,whosefoundingtreatystatesthatanattackononeallyisanattackonallofthem.Becauseofthis,westernanalystsregularlywargameasituationwhereRussiaseekstoexploitethnictensionsintheBalticandtestthestrengthoftheNATOAlliance.

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IntheUS,therearenowsixstatesthatoffertheterminallyilltheoptionofendingtheirlivesw...

https://www.bbc.co.uk/iplayer/episode/b0bcmjht/horizon-2018-4-spina-bifida-meOneinevery1,000pre...