@old-guy-photos,

Hey Paul.

It's strange. They've been doing this for years and it never occurred to me to ask, "What the heck is going on." I saw it, but I didn't see it. Apparently, Eucalyptus trees do this as well ... but they have a rainbow of colors in the underlying bark! Katie is asking around at school to see if any of her friends have a Eucalyptus tree. If they do, we're going to take a photo (before), and then take the bark back home and extract the Eucalyptus Oil (after) from it with Katie's home laboratory equipment (which now rivals many undergraduate labs ... 6 years of Alzheimer's Research and Experimentation ... for my Mom.

THOSE photos should be worth 100% Upvotes across the board.