My personal trigger in this area concerned a trip to an aquarium when I was young. There was a sign that said something like ' across millions of years of evolution, sharks have barely changed at all'.
At the time, I took this sentence to be nonsense because it seemed to be a non-sequitor - that 'evolution' somehow took place but no real change was involved. Even though I rejected evolution, it seemed to be the very epitome of change in concept.
Yet, sharks have evolved.
metatron