Home > Jonathan Kellerman > Survival of the FittestSurvival of the FittestAuthor: Jonathan KellermanSeries: Alex DelawareUpdated April 2, 2026 Alex Delaware #12Survival of the Fittest (1997) Survival of the Fittest is a 1997 book by Jonathan Kellerman and is book #12 in the Alex Delaware series. Shop this book on Amazon Go Genres Book 12, Books Related Posts The Boxer and the SpyInRobert B. Parker Hercule Poirot’s CasebookInAgatha Christie A Fatal GraceInLouise Penny The Four SuspectsInAgatha Christie Three Act Tragedy / Murder in Three ActsInAgatha Christie A Savage PlaceInRobert B. Parker The Beautiful MysteryInLouise Penny The Nature of the BeastInLouise Penny TurbulenceInStuart Woods And Justice There Is NoneInDeborah Crombie ObsessionInStuart Woods Find Her AliveInLisa Regan The Fine Art of Faking ItInLucy Score Golden HourInStuart Woods Spare ChangeInRobert B. Parker JackpotInStuart Woods Leave a ReplyCancel ReplyYour email address will not be published. Required fields are marked * Name * Email * Add Comment * Post Comment