That was in the April 2004 issue of Scientific American: Evolution Encoded. http...

		plushpuffin on Aug 21, 2019 \| parent \| context \| favorite \| on: Why does all life use the same 20 amino acids? That was in the April 2004 issue of Scientific American: Evolution Encoded. https://www.jstor.org/stable/26047680?seq=1#page_scan_tab_co... https://wps.prenhall.com/wps/media/objects/12330/12626747/my...

That would be it. Thanks for digging it up!