Urge to be first

It’s an alien species. Its habitat is scorching deserts or polar wastes, its diet Smash potato reconstituted with snow melt, and a concoction called ‘pre-stress’ drunk from a bottle that is also used to collect its own urine. Its pastimes include running marathons, writing books and climbing mountains. This is the Sir Ranulph Twistleton Wykeham Fiennes.