[ricree]

>Animals have the same rights as humans. Indeed, we are animals

By that reasoning, oughtn't we grant the same rights to a sea sponge?

It's not clear to me that animals, as a general class, deserve any particular care or rights beyond what we might extend to living creatures in general. So far as we grants rights to animals, the clear criteria seems to be complexity (especially of the intellectual sort) and closeness to humanity.