Given the remarkable diversity of bacteria and archaea - and recognizing that there is probably even more diversity that has yet to be discovered - describe which of the prokaryotes catches your interest and why. For example, are you fascinated by the ones that are beneficial, or are the pathogens more interesting to you? Do you ponder whether Archaea might give clues to the origins of life, or are you more interested in the prokaryotes that keep our planet healthy? Did any of the prokaryotes highlighted in the activities particularly surprise (or amaze) you?