Discover worlds lost to time, in which primeval sloths the size of elephants lumbered across plains. Giant turtles glided through seas alive with fearsome fish. Eight-foot-tall duck relatives tangled with crocodiles. Brawny big cats used curved teeth to take down prey. Learn about all these and more as you use the wooden stylus to scratch away the black coating on each page, revealing swirling colors and glittering foil beneath. Shrink-wrapped with a wooden stylus for drawing on black-coated paper to reveal magnificent colors beneath.