I ran out of time tonight, but I'll leave you with a couple of mystery photos to ponder. I'll post more photos and information about them tomorrow night.
We noticed these blue-gray patches on a few Sea Palms (Postelsia palmaeformis) that had drifted and then washed up on Salmon Creek Beach on 15 May 2015.
Can you guess what the patches are?
Here's another clue — well, at least it's a close-up that reveals a little bit more:
Tune in tomorrow for the answer!