Something you’ll never do.
Rotifers are tiny multicellular organisms found commonly in freshwater environments around the world. They are largely considered to be the smallest animals on Earth, composed of over 1,000 cells complete with a full digestive system and jaws but only reaching the size of a microscopic amoeba. They can be found in the most extreme environments, including the Mojave Desert where they enter dormancy when their habitats dry up. Scientists in Antarctica have recently discovered single cell organisms existing deep below ice sheets, but they’re looking even harden to see if more complex creatures like rotifers have been able to survive without sunlight in sub-zero temperatures for nearly a million years.
Image by Dr. Igor Siwanowicz, HHMI Janelia Farm Research Campus.