Ark (Quantum 7)
This timeline is not a myth parallel where there was a literal Noah’s Ark. Infinity Unlimited is almost certain of this. Instead, Ark is merely a world where virtually every species of animal is domesticable. Discovering the exact change point has not yet been achieved, but the results are real; animals from Ark both remain domesticable outside of that timeline, and their traits breed true.
Which is why the timeline is now the site of a particularly vicious war between Infinity and Centrum. Fortunately, or unfortunately, they can hide their fights inside one or other wars that crop up on Ark with distressing regularity. It turns out that being able to domesticate anything usually results in countries breeding their very own exotic animal cavalry.