 The sixth volume is devoted to the lagomorphs and 25 families of rodents, including the hares, pikas, chinchillas, the Laotian rock rat (a living fossil), the capybara (the largest extant rodent), and the diverse group of squirrels.The 60 colour plates are created by Toni Llobet.It covers the details to the taxonomy, range, habitat, reproduction, behaviour, and conservation status of 798 species from 27 families in two orders.