Embryos from Earth

I extended my "video teaser" for "The Nanoepitaxy of Susanne Marie". The version called "Embryos from Earth" includes some animated characters. YouTube now allows you to select among the three automatically-generated thumbnail images to pick the one that is used for each video.

I'm not happy with the way YouTube processed either the video or the audio for the part of "Embryos from Earth" that includes the animated characters.