Tardigrades, commonly known as moss piglets or water bears, can be found living in water, damp moss, flower petals, and sand all around the world. The minute invertebrates are usually 1 mm (0.04 inches) or smaller in size and have a head, four fused body segments, and eight claw-ended legs. Tardigrades are able to resist extremely low temperature, pressure, and humidity, and go into dormant states for months or even years. How many years can a moss piglet survive without water? Discuss