Akwai labarai da yawa da ke zagayawa game da su Balto, labarin almara na wolfdog wanda ya ceci rayukan ɗaruruwan mutane a Nome (Alaska). Yau ana tuna shi a matsayin babban gwarzo wanda ya iya kawo abinci da magunguna ga ɗimbin yara da ke fama da cutar diphtheria. Akwai bukukuwan tunawa da yawa da aka kirkira don girmama shi.
Balto ɗan mongrel ne tsakanin Siberian Husky da kerkolfci wane an haife shi a ƙaramin garin Nome, a 1923. Shekaru biyu kacal bayan haka, a farkon 1925, diphtheria ta fara afkawa yara a yankin, don haka asibitoci suka fara neman magani cikin gaggawa. Fiye da mil 1000 daga garin, a cikin garin Anchorage, an sami allurar rigakafi mafi kusa, amma guguwar dusar ƙanƙara mai ƙarfi ta hana sufuri.
Babu wata hanyar gargajiya da zata iya jure mummunan yanayin yanayi, kuma garin ya zama kamar annoba ce gabaɗaya. A lokacin ne ɗaya daga cikin mazaunanta, ya kira Gunnan kaasen, ya ba da shawarar tafiya tare da tawagarsa ta karnukan. Manufar ita ce ta ɗauka magungunan a kan wani siraren da karnuka fiye da 100 suka ja, ciki har da Balto.
Dangane da wasu juzu'i, ya shiryar da sauran karnuka gabaɗaya, amma wasu suna cewa a zahiri ya ɗauki wurin da mai jagoran farko ya bari, wanda ya karya ƙafarsa. Godiya ga aikin duk wannan ƙungiyar, allurar rigakafin sun sami isa ga inda suka nufa kuma dakatar da annoba, kodayake sunan Balto ne wanda ya shiga cikin tarihi. Kuma gaskiyar cewa karen kerkita ya iya aiwatar da umarnin dan adam abin birgewa ne.
Jaridun duniya sun yi ta maimaita wannan labarin, kuma jim kaɗan daga baya ya zama Central Park daga New York mutum-mutumi sadaukarwa ga gwarzo Balto, aikin FG Roth, tare da rubutu wanda ke cewa: "Resistance - Aminci - Hankali". Hakanan yana da wani sanannen mutum-mutumi a garinsu.
A cikin 1927, an sayar da Balto da sauran abokan tafiyarsa zuwa gidan zoo na Cleveland, inda zai yi shekarunsa na ƙarshe. Ya mutu ranar 14 ga Maris, 1933, yana barin kyakkyawan labari a bayansa. An shafe ta, kuma a yau ana baje ta a cikin Cleveland Museum of Natural History. Bugu da kari, an sanya labarin sa a cikin fim har sau uku.