Share 'Symphony of Science - Carl Sagan - Sub. Español'
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.
You can share this discussion in two ways…
Share this link:
Send it with your computer's email program: Email this