So I have this healthy little zucchini seedling.
I checked on it late at night, lights were out, and it did this:
It folded up its cotyledons. I wanted to google around and figure out how common that was, if it's normal, etc, but I couldn't even come up with the right keywords. Anyway, it's back to normal today for its sun bath, it seems happy, I'm just curious what that was.