The organisms we study are all interesting and dynamic, but that can be easy to forget when they’re things that are not publicly “charismatic”, not bright and colorful or cute and cuddly, or just too small to see. For example, I only see bacteria when there are millions of them in one place, enough to turn liquid turbid or form a small, moist-looking dab on a Petri dish. At this scale, it can seem as though things are fairly static. The liquid only becomes so turbid. The moist dab only grows to a certain circumference.
Time series taken over 16 hours, with one hour of growth preceding the addition of antibiotic (ampicillin). Original (and larger) video here.