huh, that is not the answer i was expecting.

I would assume it'd be one of those "yes they consent but we don't deem them as possessing the intellectual capacity to be making that kind of decision"

Like it is with children.

This of course assumes the human side is at an acceptable intellectual level of development.

Or even the idea that the power dynamic in such an encounter would always skew significantly in the human direction, given that animals aren't usually (legally) considered the same as far as rights, agency and autonomy are concerned.