Which animals, inferior than us the human, can do more than sleep,eat,sex and other necessary life processes and a few related things?
So, what do we gain by doing the things we do? One day, this Earth will be destroyed by climate change, nuclear war, lack of resources, or some other reason, and humans will be the cause. They will go and settle on another planet after a few centuries or maybe more. But what about the poor animals who are already living here? We are destroying their planet and their lives