British Antarctic Survey (BAS) scientists accidentally stumbled upon a boulder ringed with marine organisms (Credit: Dr. Huw Griffiths/British Antarctic Survey)

Though it is not unusual to find marine animals thriving under the Antarctica seafloor, researchers had always assumed that all life would become less abundant farther away from open water and sunlight. However, the discovery of filter-feeding organisms — 160 miles (260 km) away from the open ocean, with temperatures of −2.2°C and under complete darkness — suggests that life in the world's harshest environment may be more adaptable and diverse than previously thought.