what happens is that we kidnap , capture is a more tender word , large numbers of land animals , birds and fish , we place them in cages or water containers , and we transport them from their natural habitatsthe few remaining ones they haveto our own world , our own soulless concrete world , thousands of kilometers away from their homes , different temperatures , different smells , different everything , and we put them into prisons , often concrete ones , for the remainder of their natural lives .