Tardigrades are semi-aquatic. They can survive in watery as well as terrestrial environments — from oceans and lakes to mountains, forests and sand dunes. They're found all over the world, from frigid Antarctic glaciers to active lava fields. They're most commonly found living in moss.

Where do water bears mostly live?

Many species can be found in milder environments such as lakes, ponds, and meadows, while others can be found in stone walls and roofs. Tardigrades are most common in moist environments, but can stay active wherever they can retain at least some moisture.

Where can I find a water bear?

Many tardigrades are aquatic, but the easiest place for humans to find them is in damp moss, lichen, or leaf litter. Search in forests, around ponds, or even in your backyard. Your best bet is to look in damp places, where tardigrades are active.