Pack animal with 10 ton carrying capacity?

[rkagerer]

Is there a mod out there to add a new pack animal to the game with a meganormous carrying capacity?

My caravans to move supplies between settlements regularly comprise hundreds of animals.  It gets tedious managing them all.  I'd like to trade in 100 Muffalos for a single "Muffawhale" capable of carrying the same aggregate weight.

[Sarelth]

Have you looked into the Dinosauria or Megafauna mods, they add larger creatures that with some help can be pack animals.
The Bronto has a high carry weight.