简介：Fivetimes,theEarthhasfacedapocalypticevents.Cataclysmsthathavesweptawayalllifeforms,oralmost.Eachtime,ahandfulofspecieshassurvived,establishinganewworld. Whatdidtheseprehistoricworldslooklike?Whatcatastrophesledtotheirdisappearance?HowdidourdistantancestorsmanagetosurvivethefivemassextinctionsthattheEarthhassuffered,finallygivingrisetotheworldweknowtoday?…