He then traveled to the South Pole to see penguins and seals, to the North Pole to observe polar bears, to the upper reaches of the Amazon in search of its source (an expedition on which he encountered the rare hoatzin). The further his vision ranged, the more his love of nature deepened.
之後他去南極看企鵝、海豹；去北極觀察北極熊；去亞馬遜河上游溯源而驚見麝雉……，隨著視野越來越開闊，他對生態的關愛也更深了。