Tardigrades have been found in at least one habitat.
Tardigrades -LRB- -LSB- ˈtɑrdᵻˌgreɪd -RSB- also known as water bears , space bears , or moss piglets -RRB- are water-dwelling , eight-legged , segmented micro-animals.
They have been found everywhere from mountaintops to the deep sea , mud volcanoes , and from tropical rain forests to the Antarctic.
