Cosmos - A Spacetime Odyssey, Episode#2
Some of the Things That Molecules Do
Subjects: Biology, Life Sciences, Biochemistry, Earth Science, Anatomy, Physiology.
This episode discusses evolution, DNA, mutations, natural selection, the tree of life, the evolution of the eye, history of life on Earth, mass extinctions, and Geologic Time Scale.
Selection Artificial Selection - Selective Breeding Millions of years ago we domesticated some Wolves. Wolves with more submissive nature were accepted and more dominant ones were hunted. The genes of the domesticated wolves were passed down and became “the man’s best friend” - Dogs.
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