达尔文所不知道的事

  • Ellen Becker-Gray Jerry Chu Kandace Cummings Olivia Judson
  • 120分钟
  • Earthteemswithastaggeringvarietyofanimals,includin… Earthteemswithastaggeringvarietyofanimals,including9,000kindsofbirds,28,000typesoffish,andmorethan350,000speciesofbeetles.Whatexplainsthisexplosionoflivingcreatures—1.4milliondifferentspeciesdiscoveredsofar,withperhapsanother50milliontogo?Thesourceoflife'sendlessformswasaprofoundmysteryuntilCharlesDarwinbroughtforthhisrevolutionaryideaofnaturalselection.ButDarwin'sradicalinsightsraisedasmanyquestionsastheyanswered.Whatactuallydrivesevolutionandturnsonespeciesintoanother?Towhatdegreedodifferentanimalsrelyonthesamegenetictoolkit?Andhowdidweevolve? "WhatDarwinNeverKnew"offersanswerstoriddlesthatDarwincouldn'texplain.Breakthroughsinabrand-newscience—nicknamed"evodevo"—arelinkingtheenigmasofevolutiontoanotherofnature'sgreatmysteries,thedevelopmentoftheembryo.NOVAtakesviewersonajourneyfromtheGalapagosIslandstotheArctic,andfromtheexplosionofanimalformshalfabillionyearsagototheresearchlabsoftoday.Scientistsarefinallybeginningtocracknature'sbiggestsecretsatthegeneticlevel.TheresultsareconfirmingthebrillianceofDarwin'sinsightswhilerevealingcluestolife'sbreathtakingdiversityinwaysthegreatnaturalistcouldscarcelyhaveimagined.

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