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How did multi-celled animals evolve?
Posted: Thu Dec 22, 2016 3:31 pm
by jonperry
At the debate several years back, Steve asked how multi-celled organisms could have evolved. I gave a quick answer there on the spot but recently got around to doing a proper animation on the subject. Here it is:
https://www.youtube.com/watch?v=VUfNEHl44hc
In the video description on YouTube you can find links to all the experiments.
Re: How did multi-celled animals evolve?
Posted: Thu Dec 22, 2016 8:44 pm
by Paidion
Perhaps a more challenging question is, "What is the origin of the first forms of life—supposedly single-cell organisms? Did they simply appear out of nowhere? Or were they brought here by ancient visitors from other planets or systems or galaxies? The latter doesn't really explain anything; it just moves the problem a step backwards.
Re: How did multi-celled animals evolve?
Posted: Fri Dec 23, 2016 7:54 pm
by jonperry
Current thinking is that the first life forms would have been free living genes made of RNA or something similar to it.
I have a video explaining why that idea is most probable given our current understanding of life and chemistry right here:
https://youtu.be/K1xnYFCZ9Yg