Scientists make surprise discovery of life in the seafloor’s ‘underworld’ CNNAnimal life in the shallow subseafloor crust at deep-sea hydrothermal vents Nature.comAnimals found living underground near deep-sea hydrothermal vents Yahoo! VoicesGiant tubeworms part of thriving ecosystem found under the seafloor in the Pacific ABC NewsTubeworms live beneath the planetary crust around deep-sea vents The Economist