/ Otolith Content for swagÍâÁ÷ en /curiosity/news/spinal-deformities-delta-fish-linked-toxic-mineral-selenium-0 <p>Native fish discovered with spinal deformities in California’s Sacramento-San Joaquin Delta in 2011 were exposed to high levels of selenium from their parents and food they ate as juveniles in the San Joaquin River, new research has found.</p> February 24, 2020 - 9:52am Katherine E Kerlin /curiosity/news/spinal-deformities-delta-fish-linked-toxic-mineral-selenium-0