Gumbo

Gumbo is a three-legged Bighorner that was adopted by Ian as a calf. He lost his leg to a bear trap and was abandoned by his herd. His leg was later replaced with a cybernetic one with help from Dalton and Doc Henry.

Though most Bighorners tend to react poorly to being asked to carry things for their owners, Ian managed to train Gumbo to carry things, and plans on eventually teaching him to pull a cart.

Trivia

 * Hal doesn't like Gumbo, and thinks he would make a better meal than a companion. When Ian tried to think of a name for him, Hal suggested mostly food themed names- insisting that Steak would be a damn good name for the thing, and if not Steak, why not Dinner?