Premise: The deep sea or deep layer is the lowest layer in the ocean , existing below the thermocline and above the seabed , at a depth of 1000 fathoms ( 1800 m ) or more . Tardigrades ( [ ˈtɑrdᵻˌgreɪd ] also known as water bears , space bears , or moss piglets ) are water-dwelling , eight-legged , segmented micro-animals . Tardigrades can be found throughout the world , from the Himalayas ( above 6000 m ) , to the deep sea ( below 4000 m ) and from the polar regions to the equator .
Hypothesis: Tardigrades can live in the ocean.
Label: ENTAILMENT