• Confused_Emus@lemmy.dbzer0.com
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    5 months ago

    Rather than looking at the illustration in the OP as three separate structures, I think it may be depicting a single structure in three stages of development, going left to right.

    • Ech@lemm.ee
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      5 months ago

      Looking at it again, I think you’re absolutely right. The tree growth is meant to show time passing. Neat!