Sacramento Splittail (IMAGE)
Caption
Captured in the wild and raised in tanks at UC Davis, Sacramento splittail show spinal deformities traced to exposure to selenium. Scientists used the fishes' ear bones, called otoliths, to track their exposure to selenium.
Credit
Fred Feyrer, U.S. Geological Survey
Usage Restrictions
CREDIT: Fred Feyrer, U.S Geological Survey
License
Licensed content