Prior to her recent visit to the Northern Rockies of Idaho, Gaby Curtiz had walked near lions, elephants and crocodiles but she had never encountered a different kind of formidable natural force: snow. Here, philanthropist Greg Carr, a native of Idaho Falls and who has played a keystone role in the resurrection of Gorongosa Park, gives Curtiz an initiation into a hardy North American tradition—jumping into an ice-covered lake or river. She survived and is now a proud member of the Polar Bear Club. Photo courtesy Greg Carr