Dear all, I was looking for a figure / scheme of a lamprey life cycle and came across this presentation: https://www.cesampr.com/uploads/8/8/3/3/8833065/chordata-fish.pdf <https://www.cesampr.com/uploads/8/8/3/3/8833065/chordata-fish.pdf> Does anybody know the source (textbook?) of the figure presented on page 13? Many thanks, Thomas