Darwin’s first sketch of the tree of life from one origin. Note the cross-bars for extinction — and that change is not conceived with some direction-as-progress. And notice Darwin’s simple words introducing the sketch, “I think…”
Charles Darwin #quote More
Animals Leave Their Skeletons Behind
Tree of Life Arm Tattoo with asterisk at humans
Darwin's journal sketch of phylogenetic tree & "I think". After all these years I finally got this tattoo.