Scientific illustration of a Prickly shark (Echinorhinus cookie), using stipple technique with a 05 Micron marker.

Image source: “Prickly Shark Nimbly Maneuvers Above Seafloor”, Nautilus Live (Video). https://nautiluslive.org/video/2019/09/13/prickly-shark-nimbly-maneuvers-above-seafloor

Cut-out replacement sequence animation of a “sea angel” (pteropod).

Image source: Alexander Semenov, “Under the Ice” (Video).
https://www.youtube.com/watch?v=PGquZTg5qXs