Oh... I didn't know that. I'm from [..] what we call a planet.

[ he feels pretty stupid for not knowing that, apparently. ]

[ and there'a a beat of quiet, before he offers a careful explanation, ]

... Moral reasons. There are all sorts of animals, like me, back home. A carnivore [ or those more ambiguous omnivores ] devouring a herbivore is considered one of the greatest sins that we could commit.

Even if the animals here are different, I haven't reconciled that.