> Carbs decrease and fat increases, as a cow develops, but the protein
> fraction remains constant.
>
> I'm interested in knowing if that's true for wolves and other wild
mammals.
> Does anyone have any sources for this?

it is true for several australian mammals from what i saw in a vet's book
the other day.
the more towas adulthood the animal gets, the more important fat becomes vs
carbohydrates.

Andrew