Cosmos: A Personal Voyage
Episode 02 - One Voice in the Cosmic Fugue. Carl Sagan discusses the story of the Heike crab and artificial selection of crabs resembling samurai warriors, as an opening into a larger discussion of evolution through natural selection (and the pitfalls of intelligent design). Among the topics are the development of life on the Cosmic Calendar and the Cambrian explosion; the function of DNA in growth; genetic replication, repairs, and mutation; the common biochemistry of terrestrial organisms; the creation of the molecules of life in the Miller-Urey experiment; and speculation on alien life (such as life in Jupiter's clouds). (from wikipedia.org)
| Episode 02 - One Voice in the Cosmic Fugue |
Go to Cosmos: A Personal Voyage Home or watch other episodes: