Evolution In Four Dimensions: Genetic, Epigenetic, Behavioral, And Symbolic Variation In The History Of Life (Life And Mind: Phi,Used

Ideas About Heredity And Evolution Are Undergoing A Revolutionary Change. New Findings In Molecular Biology Challenge The Genecentered Version Of Darwinian Theory According To Which Adaptation Occurs Only Through Natural Selection Of Chance Dna Variations. In Evolution In Four Dimensions, Eva Jablonka And Marion Lamb Argue That There Is More To Heredity Than Genes. They Trace Four 'Dimensions' In Evolution Four Inheritance Systems That Play A Role In Evolution: Genetic, Epigenetic (Or Nondna Cellular Transmission Of Traits), Behavioral, And Symbolic (Transmission Through Language And Other Forms Of Symbolic Communication). These Systems, They Argue, Can All Provide Variations On Which Natural Selection Can Act. Evolution In Four Dimensions Offers A Richer, More Complex View Of Evolution Than The Genebased, Onedimensional View Held By Many Today. The New Synthesis Advanced By Jablonka And Lamb Makes Clear That Induced And Acquired Changes Also Play A Role In Evolution. After Discussing Each Of The Four Inheritance Systems In Detail, Jablonka And Lamb 'Put Humpty Dumpty Together Again' By Showing How All Of These Systems Interact. They Consider How Each May Have Originated And Guided Evolutionary History And They Discuss The Social And Philosophical Implications Of The Fourdimensional View Of Evolution. Each Chapter Ends With A Dialogue In Which The Authors Engage The Contrarieties Of The Fictional (And Skeptical) 'I.M.,' Or Ifcha Mistabra Aramaic For 'The Opposite Conjecture' Refining Their Arguments Against I.M.'S Vigorous Counterarguments. The Lucid And Accessible Text Is Accompanied By Artistphysician Anna Zeligowski'S Lively Drawings, Which Humorously And Effectively Illustrate The Authors' Points.