Corals and sponges played host to a variety of marine life, including icefish, huge sea spiders, octopuses and even a giant phantom jelly, a species of jellyfish that can grow up to a metre wide, while its four ribbon-like oral arms can measure more than 10 metres in length.<\/p>\n
The team suspects they may have discovered several species new to science, offering a fresh perspective on life beneath Antarctica\u2019s floating ice shelves.<\/p>\n Until recently, little was known about the organisms residing beneath Antarctica\u2019s vast ice shelves. The discovery of such a biodiverse ecosystem presents new mysteries \u2013 how do these creatures survive in a place completely cut off from sunlight and the usual food sources?<\/p>\n Deep-sea communities typically depend on organic material sinking from surface waters, yet this region had been entombed beneath 150-metre-thick ice for centuries, say the researchers.<\/p>\n The team hypothesises that ocean currents could be transporting essential nutrients, sustaining life in this hidden world.<\/p>\n Beyond its biological wonders, the expedition is yielding critical insights into Antarctica\u2019s past and future. The team, who are investigating geological clues left by the retreating ice sheet, say that understanding these patterns is crucial for predicting future ice loss and its impact on rising sea levels worldwide.<\/p>\n \u201cThe ice loss from the Antarctic Ice Sheet is a major contributor to sea level rise worldwide,\u201d says expedition scientist Sasha Montelli.<\/p>\n “Our work is critical for providing longer-term context of these recent changes, improving our ability to make projections of future change \u2013 projections that can inform actionable policies.<\/p>\n “We will undoubtedly make new discoveries as we continue to analyse this vital data.\u201d<\/p>\n The team deployed autonomous underwater gliders to measure how glacial meltwater is influencing the region\u2019s chemistry and ocean currents. Preliminary findings suggest heightened biological productivity and a significant influx of meltwater from the retreating ice shelf.<\/p>\n This mission forms part of Challenger 150, a UNESCO-endorsed global initiative dedicated to deep-sea research. Schmidt Ocean Institute\u2019s Executive Director, Dr Jyotika Virmani, says that “being right there when this iceberg calved from the ice shelf presented a rare scientific opportunity.<\/p>\n “Serendipitous moments are part of the excitement of research at sea \u2013 they offer the chance to be the first to witness the untouched beauty of our world.\u201d<\/p>\n This article<\/a> by Daniel Graham was first published by Discover Wildlife on 20 March 2025. Lead Image: An octopus rests on the seafloor 1,150 metres deep, in the Bellingshausen Sea off Antarctica\/ROV SuBastian, Schmidt Ocean Institute.<\/i><\/p>\n Wildlife continues to face threats, which include hunting, poaching, illegal trade in animal products, habitat loss as well as a rapidly changing climate.<\/p>\n Become a Wildlife Champion today by supporting our conservation partners<\/a> with a monthly donation as little as $1.<\/p>\nRethinking life beneath the ice<\/h2>\n
Unlocking climate secrets<\/h2>\n
What else did they find?<\/h2>\n
What you can do<\/h2>\n