"Biferous" is a word in ENGLISH

In the cage is the lion. She paces with her memories. Her body is a record of her past. As she moves back and forth, one may see it all: the lean frame, the muscular legs, the paw enclosing long sharp claws, the astonishing speed of her response. She was born in this garden. She has never in her life stretched those legs. Never darted farther than twenty yards at a time. Only once did she use her claws. Only once did she feel them sink into flesh. And it was her keeper's flesh. Her keeper whom she loves, who feeds her, who would never dream of harming her, who protects her. Who in his mercy forgave her mad attack, saying this was in her nature, to be cruel at a whim, to try to kill what she loves. He had come into her cage as he usually did early in the morning to change her water, always at the same time of day, in the same manner, speaking softly to her, careful to make no sudden movement, keeping his distance, when suddenly she sank down, deep down into herself, the way wild animals do before they spring, and then she had risen on all her strong legs, and swiped him in one long, powerful, graceful movement across the arm. How lucky for her he survived the blow. The keeper and his friends shot her with a gun to make her sleep. Through her half-open lids she knew they made movements around her. They fed her with tubes. They observed her. They wrote comments in notebooks. And finally they rendered a judgment. She was normal. She was a normal wild beast, whose power is dangerous, whose anger can kill, they had said. Be more careful of her, they advised. Allow her less excitement. Perhaps let her exercise more. She understood none of this. She understood only the look of fear in her keeper's eyes. And now she paces. Paces as if she were angry, as if she were on the edge of frenzy. The spectators imagine she is going through the movements of the hunt, or that she is readying her body for survival. But she knows no life outside the garden. She has no notion of anger over what she could have been, or might be. No idea of rebellion.It is only her body that knows of these things, moving her, daily, hourly, back and forth, back and forth, before the bars of her cage.