Author:
Kelly, Erica.
Imprint:New York : Abrams Books for Young Readers, c2008.
Physical Description136 p. : col .ill., maps ; 29 cm.
Note:Companion book to the Field Museum's exhibit Evolving planet.
Note:Reveals how, over time, new life-forms evolved from earlier ones, and after serveral billiono years, added up to diversity as well as extinctions.