What's the point of this argument? It's total semantics. Animals don't have the ability to conceptualize. Period. If they did, they would have attempted to communicate with us conceptually by now, that has not happened to this date. Only humans so far have shown that they have a conceptual consciousness. Since the concept of 'rights' is again a concept, only humans understand rights. Therefore only humans have rights. Any attempts at proving that animals have a conceptual consciousness is just a bunch of whack job scientists trying to anthropomorphize and degrade humans down to the level of animals.