In the icy waters off the Norwegian coast, a young fisherman named Oscar Lundahl encountered a creature straight out of prehistory: the enigmatic "mouse fish," also known as a ratfish. This deep-sea inhabitant, with its bulbous eyes and petite body, is a species that traces its lineage back 300 million years. What Is the Mouse Fish? The mouse fish, scientifically known as … [Read more...] about 19-Year-Old Fisherman Catches Rare ‘Mouse Fish’: A 300-Million-Year-Old Deep-Sea Marvel