Rights are the product of an exchange where terms are specified in a contract. For rights to exist a contract must exist – stated or written, or assumed. If we cloned hominids, and cloned them sufficiently well that they could negotiate agreements with us, it is very likely that we would have to grant them NATURAL rights – because we cannot create contracts without natural rights.
The definntion of human right is fungible. They are a preference. Meaning, they are not necessary right, and as such not natural rights. They are aspirational rights, or desired rights, that while not necessary we have asked all other people to respect. If these clones were able to understand those rights, and consent to them, then we could grant them rights if they would grant them to us. This would be a contract for exchange, and therefore each side would have rights. Even if these rights are not written or spoken, but just understood and adhered to.
Animals cannot have rights because they cannot conduct an exchange with us. We treat animals as if they have rights, because we have an agreement with others to treat animals as if they have rights. But they do not have rights. We simply have obligations to other people to treat animals as if they have rights. Our obligation is to other humans, not to animals.
Animals only have rights by analogy. But human beings like to feel that rights come from somewhere supernatural, and others don’t understand the construct of rights, so they anthropomorphize animals. This is a simple mistake, but the majority of people make it either out of ignorance or for ideological reasons.
I hope this helps.
https://www.quora.com/If-we-ever-cloned-hominids-would-they-have-human-rights