Super-spotter of duplicated images in science papers [2020]

Happened on this after seeing a curious-looking youtube video[1] which apparently is part of a series[2] that exists to provide animated illustrations for some of Bik's comments, such as the one at [3].

Was somewhat surprised to discover the duplicates were spotted by eye rather than software!

1: https://www.youtube.com/watch?v=YhLmTVtaxkg

2: https://www.youtube.com/playlist?list=PLlXXK20HE_dV8rBa2h-8P...

3: https://pubpeer.com/publications/C00876ADB21BEECB01B290B33AF...