![]() A heavy font ensures high legibility even in dim lighting.The episode concludes with an animation from the original Cosmos showing the evolution of life from a single cell to humankind today. Tyson speculates on the possibility of life on other planets, such as Saturn's moon, Titan, as well as how abiogenesis may have originated life on Earth. Tyson describes extinction of species and the five great extinction events that wiped out numerous species on Earth, while some species, such as the tardigrade, were able to survive and continue life. ![]() Tyson uses the Ship of the Imagination to show how DNA, genes, and mutation work, and how these led to the diversity of species as represented by the Tree of life, including how complex organs such as the eye came about as a common element. Tyson describes both artificial selection via selective breeding, using the example of humankind's domestication of wolves into dogs, and natural selection that created species like polar bears. The episode covers several facets of the origin of life and evolution. SOME OF THE THINGS THAT MOLECULES DO (18 questions) Purchasing physical media or paid streaming access is recommended. While episodes may be found streaming on the Internet, such links can be ephemeral and unreliable. The show is presented by astrophysicist Neil deGrasse Tyson, who, as a young high school student, was inspired by Sagan. This series was developed to bring back the foundation of science to network television at the height of other scientific-based television series and films. The show is a follow-up to the 1980 television series Cosmos: A Personal Voyage, which was presented by Carl Sagan is considered a milestone for scientific documentaries. This is a question set to accompany Episode 2 of Cosmos: A Spacetime Odyssey, a thirteen-part American science documentary television series released in 2014.
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