Natural Moral Law
Something is natural if it is willed by God, the natural law theory of ethics says that natural is good. "Goodness" is seen as fulfilling its natural purpose and "badness" is going against the natural purpose.
The natural purpose of animals are not to be used in laboratories but to be creatures and have rights of their own. Therefore animal testing does not agree with natural moral law, thus it goes against God's purpose so is bad.
"Natural Law universally defends the inherent dignity of humankind, even the unborn." Therefore they definitely defend the dignity of being humane and treating animals with up-most respect.
The natural purpose of animals are not to be used in laboratories but to be creatures and have rights of their own. Therefore animal testing does not agree with natural moral law, thus it goes against God's purpose so is bad.
"Natural Law universally defends the inherent dignity of humankind, even the unborn." Therefore they definitely defend the dignity of being humane and treating animals with up-most respect.