Paleontologists have unearthed Mosura fentoni, an ancient three-eyed predator that inhabited Earth's oceans over 500 million years ago. Known as the 'sea moth' due to its moth-like body, this arthropod provides valuable information about early arthropod diversity and evolution. The discovery of Mosura fentoni has enhanced our understanding of the Cambrian Era ecosystems and the role of predators in shaping marine life.