Nowadays our society is becoming concerned about the issue of protecting beasts living in captivity. Owning to the problems which this situation causes to the environment, some people advocate that keeping animals in zoos is unacceptable as they are instantly constrained and may be treated violently while being there. However, others are ardent adherents of the idea that such organisations as zoos were created and incorporated into our life as a means of helping unique representatives of fauna to survive and not go extinct. From my point of view, no living being cannot be kept in cages by humans and zoos, therefore, should be prohibited by the law.