From frozen polar regions to scorching deserts and from high altitude to deep oceans, animals thrive in the most hostile places on Earth. Vancouver Island marmots slow their metabolism to 25 times below normal during a freezing mountain winter. The wood frog cheats death by going into suspended animation during the coldest months. The limits of endurance are explored in the last of the series, featuring wildlife action and 3-D animation.
BBC Wildlife Magazine: £2.90