In this story, a man wakes up with no memory in a teleported chamber. Outside he finds a jungle/forest of a destroyed city with no human life. He meets a talking animal that becomes his guide and hints to his past and abilities. The man learns that he is an augmented human or cyborg capable of great strength and that he is a clone of one of the last humans who is currently maintaining the last of humanity's knowledge, despite a near total extinction.
I read this over a decade ago, so at this point I'm not sure if it was just a dream.