Scientists have found a way to 'tattoo' tardigrades

If you haven't heard of a tardigrade before, prepare to be wowed. These clumsy, eight-legged creatures, nicknamed water bears, are about half a millimeter long and can survive practically anything: freezing temperatures, near starvation, high pressure, radiation exposure, outer space and more. Researchers took advantage of the tardigrade's nearly indestructible nature and gave the critters tiny 'tattoos' to test a microfabrication technique to build microscopic, biocompatible devices.