When animals give rights, ethical consideration, and justice to one another, then I will consider the "seriousness" of the argument.  For me, I choose not the anthropomorphize animals when considering "justice for humanity".
I consider any number of things "serious" including anthropology, biology, and animal husbandry; I just don't confuse them in an ethical mish-mash.
I am glad to know that you are serious, however.  I will now know how to take your posts.