Research: Ancient fossil upends assumptions about origins of two-thirds of all freshwater fish

Research: Ancient fossil upends assumptions about origins of two-thirds of all freshwater fish Published in Science, this research reshapes our understanding of the evolutionary origins of freshwater fish, providing crucial insights into the adaptability and evolutionary history of aquatic life. Thu, 02 Oct 2025 14:00:00 -0800 An image of the Acronichthys maccagnoi fossil (courtesy of Dr. Juan Liu of the University of California); Newbrey; the Science magazine logo