Occurred on December 25, 2018 / Poland
Info from Licensor: "This is a single-celled organism in the genus Blepharisma and it is going through a programmed cell death. They usually have pinkish color and they are photophobic which means when the light levels are increased they will try to swim to the darkened areas. If they are exposed to light or starved, they will lose their pinkish color and will look like this one in the video. Also, strong light can even kill the pink colored ones. But here it looks like the organism underwent apoptosis, which is programmed cell death. There is not much research about apoptosis in single-celled organism."