1) Simon Wells (Director of Balto not the Sequels) and his team originally planned Balto's parents to be a unnamed wolf father and a unnamed sled-dog husky mother in 'Balto. However, the idea was never finalized. 
2) The Real Life Balto was a Purebred Siberian Husky who was who was raised in a shelter that being trained to be a sled dog, not an outcast half-wolf street dog as he is portrayed in the films. 
3) In real-life, Balto was black (later turned dark brown when he moved to the states with his owner) with white "socks". In the movie, he is grey-brown like an actual wolf. 
4) The Mushers in real-life would not allow their sled dogs to mate with wolves. 
5) Balto was neutered in real life, so even if mating was allowed between dogs and wolves it wouldn't have been possible for 6 puppies to be born. 
6) According to the director of Balto, the White Wolf is the father spirit of Balto's wolf side not his mother. 
7) Balto, Jenna, Boris & Muk & Luk are the only characters that have appeared in all 3 movies. 
8) Balto had an alternate design during the making, but it was changed by unknown reasons. 
However, another character has his old design.
9) Balto was only animated canine character that Kevin Bacon Voiced. 
10) Balto along with Jenna are the only characters that had their own Plushes! 
11) In the third film when Balto told Kodi that the bi-plane's day was coming, that foreshadowed the fact that deliveries had begun by plane since all 3 of the films take place in Nome, Alaska during the date of the diphtheria scare, which is the 1920s. 
12) Balto Fonds Jenna and Balto is the Mate of Jenna. Ironically Balto Fandom, other people have not followed that ideas start to finish in any sharp or form. With Incest ideas, Gay, Bisexual, etc. 
13) Balto Fandom, other people Believe Balto is Bisexual or Gay. I have covered his Personality being this: Strong and outgoing, Balto is smart and trustworthy, and cares deeply for others, but is a bit shy. He is very kind and loyal but can be impulsive when it comes to Steele and Jenna. In the first film, he desired to be a sled dog but is ashamed of his wolf heritage, as it causes him to be bullied by the people of Nome and by most of the various dogs, but after safely delivering the Antitoxin, he finally learns to accept it, and he learns that being part wolf is a strength and not a weakness. And he is also known as benevolent, adventurous, lovable, trustworthy, optimistic, big-hearted, athletic, level-headed, thoughtful and open-minded. 
There is no hint of him being gay or bisexual just the ideas Balto Fandom, other people enjoy the ideas so much. The Most ironic there is no theory of him being Straight. Just the ideas him being Gay or Bisexual.