- Why does the ascidian heartbeat reverse?
- Will flukes mate with their clones?
- Is the "water" in the water vascular system isosmotic with seawater?
- How similar is the hemoglobin of holothuroids and ophiuroids?
- Why do morula cells take up heavy metals?
When I'm TAing, I sit in lecture and jot down questions like these. Some are asked by students, some occur to me as I listen, and some are brought up by the professor. None are answered satisfactorily in class. Later, sitting at my desk, I use them to procrastinate--sometimes spending hours chasing obscure references.
But today, I'm committed to actually getting work done. So the questions get posted here instead, with answers to come if and when I find time to look them up.