Symphony of Science - Carl Sagan - Sub. Español

We are all tied together, with an unbroken thread from those first cells to the evolution of Homo sapiens. Every cell is a triumph of natural selection. There is a wuzy line, getting wuzier all the time, between other species and humans. From birth > to reproduction > to death, again and again over time and space. 

Views: 10

© 2016   Atheist Nexus. All rights reserved. Admin: Richard Haynes.   Powered by

Badges  |  Report an Issue  |  Terms of Service