<p>'Fascinating' Guardian<br><br><br>From scorching deserts to frozen seabeds, from the highest peaks of the Himalaya to the hadal depths of the oceans, there are habitats on this Earth that appear inimical to life - yet in which it flourishes nevertheless. During the midday heat of the Sahara, silvery ants sprint from their nests to feed. In North American forests, wood frogs awaken each spring from solid blocks of ice. At the site of the Cherno...