Deuterium!

I was so focused on getting the pre-sunrise plane without much wasted space on the ground that I missed the opportunity to fully frame Mr. Peanutbutter. Sorry, Buddy! But I made up for the faux pas with a dedicated portrait in the gallery below.

Today's title is a bit of a teaser because we have a divide-and-conquer day with the Little Sunbeams and my time to post is short. I am 2/3 through the chapter on Deuterium in Mitochondriac Manifesto, and I feel the author laid out A to C, but skipped B. So I want to do a little extracurricular research before presenting my own take. Stay tuned!