No problems, just an idea.
A new entry for carnivores.

Similiar to
"favourite_food":"minecraft:beef",

but something like
"favourite_prey": "alexsmobs:gazelle"

Where when Carnivore becomes hungry and no food is nearby, it will hunt its preferred prey!
Perhaps with an additional "hunger rate": "tick amount" or something like that?

Imagine walking into a biome and you see hungry lions chasing down gazelle that are running away.

Wait, they don't kill prey animals? So that's why the bears I released are starving to death when there's chickens everywhere.