For hundreds of years biologists have studied the naturally occurring diversity
in plant and animal species. The invention of the electron microscope in the
rst half of the 1900's reveled that cells also can be incredible complex (and
often stunningly beautiful). However, despite the fact that the eld of cell
biology has existed for over 100 years we still lack a formal understanding
of how cells evolve: It is unclear what the extents are in cell and organelle
morphology, if and how diversity might be constrained, and how organelles
change morphologically over time.(...
