Scientists Discover Rare Species of Jellyfish in the Mariana Trench A groundbreaking underwater expedition has made a remarkable discovery in the deepest part of the ocean, the Mariana Trench. According to sources, a team of researchers has identified a previously unknown species of jellyfish, pushing the boundaries of our understanding of the marine ecosystem. This extraordinary find is believed to be the first of its kind in over a century, sparking widespread interest in the scientific community. The discovery is set to shed new light on the unexplored depths of the ocean and the incredible diversity of life that exists within it.