1.   That ocean might contain life forms warmed by undersea volcanoes.

2.   The ice is probably melted by internal heat sources, such as undersea volcanoes, that may also keep exotic life forms snug and warm.

3.   The MEDEA group said the maps would greatly aid the understanding of seabed geology and evolution and would pinpoint such seabed features as undersea volcanoes.

4.   The Nautilus travels under an ice pack, past an undersea volcano and to Atlantis.

5.   In his doomsday scenario, the shock wave topples a brittle undersea volcano.

6.   Scientists track erupting undersea volcano off Oregon coast.

7.   Undersea volcanoes are common in the Tongan region which sits astride the Tonga Trench, a long canyon which has some of the deepest waters in the world.