[dahdum]

It’s the same in both, it was deliberate. Wikipedia lists a potential reason.

> The title “Wolfs”, a grammatically incorrect plural of Wolf, is an apparent reference to the character of Winston Wolfe (aka “Mr Wolf”) - an iconic “fixer” in the Quentin Tarantino film Pulp Fiction. https://en.wikipedia.org/wiki/Wolfs_(film)

[gizajob]

I don’t buy it.

[satiric]

Well do you talk about Nissan Leafs, or Nissan Leaves? I'd probably use the former