Researchers Tattooed Tardigrades. They Promise It Will Be Useful

This innovative approach uses tardigrades, "water bears" known for their incredible resilience, to create micro-level tattoos as part of a breakthrough in developing biocompatible materials. By dehydrating them into a cryptobiotic state and using anisole and electron beams, researchers successfully etched intricate patterns that could one day be applied onto living tissues to create microscopic robots or sensors. While most tardigrades perished after this process, the method shows promise for future refinement and broader applications in fields like cryopreservation, biomedicine, and even astrobiology.