This prehistoric fish may explain how animals first walked on Earth

Scientists have peered inside the skull of a 380-million-year-old Antarctic fish that was closely related to the first animals to walk on land, revealing surprising clues about how life began its move out of the water. Using advanced neutron imaging, researchers discovered that Koharalepis jarviki had features suited for living near the waters surface, including openings in its skull that may have helped it gulp air and a light-sensitive organ linked to day-night rhythms.