"[In his final taped message to Tara] They'll be back again next year, struggling over the same barren stretch of ice to breed the next generation. And so it will go on, as long as there are penguins and skuas and the will to survive. And what have I learned from it all? That every living creature depends in some way on every other. Humans too. I'm not the same to myself anymore, Tara. Will I seem the same to you, and you to me?"