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Author : David Quammen Pages : 480 pages Publisher : Simon Schuster Language : ISBN-10 : 1476776636 ISBN-13 : 9781476776 637

The Tangled Tree: A Radical New History of Life In this Ne w Yor k Tim es bes tsel ler and lon glis t no min ee for


the Nat ion al Boo k Aw ard , “ou r gre ate st livi ng chr oni cler of the nat ural wor ld” (Th e Ne w Yor k Tim es), Dav id Qu am me n exp lain s


ho w rec ent disc ove ries in mol ecu lar biol ogy affe ct our und erst and ing of evo luti on and life’ s hist ory. In the mid 197 0s, scie ntis ts beg an usi ng


DN A seq uen ces to ree xa min e the hist ory of all life. Per hap s the mo st star tlin g disc ove ry to co me out of this ne w fiel d— the stu dy of


life’ s div ersi ty and rela ted nes s at the mol ecu lar lev el— is hori zon tal gen e tra nsf er (HG T), or the mo ve me nt of gen es acr oss spe cies line s.


It tur ns out tha t HG T has bee n wid esp rea d and imp ort ant ; we no w kno w tha t rou ghl y eig ht per cen t of the hu ma n gen om e


arri ved sid ew ays by vira l infe ctio n— a typ e of HG T.I n The Tan gle d Tre e, “th e gra nde st tale in biol ogy ….D avi d Qu am me n pre sen ts


the scie nce —a nd the scie ntis ts inv olv ed —w ith pati enc e, can dor , and flair ” (Na tur e). We lear n abo ut the maj or pla yer s, suc h as Carl Wo


ese , the mo st imp ort ant littl ekno wn biol ogi st of the twe ntie th cen tur y; Lyn n Mar guli s, the not orio us ma veri ck wh ose wild ide as abo ut


“m osa ic� cre atu res pro ved to be tru e; and Tsu tom u Wa nta nab e, wh o disc ove red tha t the sco urg e of anti biot icresi sta nt bac teri a is a dire


ct res ult of hori zon tal gen e tra nsf er, brin gin g the dee p stu dy of gen om e hist orie s to bea r on a glo bal cris is in pub lic hea lth. “Da vid


Qu am me n pro ves to be an im me nse ly well info rme d gui de to a co mpl ex stor y� (Th e Wal l Str eet Jou rnal ). In The Tan gle d Tre e,


he exp lain s ho w mol ecu lar stu die s of evo luti on hav e bro ugh t star tlin g rec ogn itio ns abo ut the tan gle d tre e of life —in clu din g wh ere


we hu ma ns fit upo n it. Tha nks to ne w tec hno logi es, we no w hav e the abil ity to alte r eve n our gen etic co mp osit ion —t hro ugh sid ew


ays ins erti ons , as nat ure has lon g bee n doi ng. “Th e Tan gle d Tre e is a sou rce of wo nde r‌. Qu am me n has writ ten a dee p and dari ng inte


llec tual adv ent ure � (Th e Bos ton Glo be) . The Tangled Tree: A Radical New History of Life

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The Tangled Tree: A Radical New History of Life  

The Tangled Tree: A Radical New History of Life  

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