We cannot glimpse the essential life of a caged animal, only the shadow of its former beauty. Human liberation will begin when we understand that our evolution and fulfilment are contingent on the recognition of animal rights and on a compassionate and responsible stewardship of nature. You have to love animals for what they are or leave them alone. The best thing you can do for if you love them is leave them alone and see that other people do too. Wild animals are not meant to be owned, any more than human beings are.
Nobody has the right to pass a cougar or a gorilla on from hand to hand.