I really wasn’t intending to leave Geopuzzle 14 hanging out unanswered on the interweb for as long as it has – and not just because my delay has apparently put my beer stash in jeopardy. The answer is actually both rather interesting, and rather controversial – because if this, and the other things that this was found with, are the imprints of large multicellular organisms, as their discovers claim, then we may have to significantly rewrite the history of life on Earth; for the rocks that they are found in are almost 2 billion years old.
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For lot's more videos on soil moisture topics, see Drs Selker and Or's text-book support videos https://www.youtube.com/channel/UCoMb5YOZuaGtn8pZyQMSLuQ/playlists
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Nice plan for content warnings on Mastodon and the Fediverse. Now you need a Mastodon/Fediverse button on this blog.