3/7. South America - the most species-rich continent on earth. From the volcanoes of the Andes to the world's largest rainforest, animals here must specialise to carve out a niche. Also in HD. [S,AD]
1/7. Antarctica - the coldest, windiest, most hostile continent. Only the toughest can survive here. But the ocean here is warming and with that comes an uncertain future. Also in HD. [S,AD]
1/7. Antarctica - the coldest, windiest, most hostile continent. Only the toughest can survive here. But the ocean here is warming and with that comes an uncertain future. Also in HD. [S,AD]