Share Word Search The Sixth Extinction To create your word search for "The Sixth Extinction", first select the words you want to use. Choose up to twenty words for your game by clicking on a suggested word or enter your own by typing over an existing word. Suggestions for your word search; click to add. EXTINCTIONS TRIGGERING INEXORABLY INFLUENCE ECOSYSTEM UNCHARTED OCCASIONS UPHEAVAL SUBJECT TRIGGER AUTHORS RICHARD EXPERTS HISTORY NOTHING EVENTS RECORD HUMANS ANIMAL FUTURE KEEPER WORLD ROGER GRAND PLANT HUMAN RICH RACE PAST FIVE How do you want the words displayed in the game? Forward Down Diagonal Backward Puzzle Title