Contact: Steve Koppes
University of Chicago
Caption: Both graceful and docile, this modern sandtiger shark swims through a school of round scad fish in the coastal waters off North Carolina. Modern sand tigers prefer waters of high salinity, though they tolerate brackish waters for short periods as well.
Credit: Erik Rebeck
Usage Restrictions: News organizations may use this image in connection with reports about the research of Sora Kim and her colleagues.
Related news release: Shark teeth analysis provides detailed new look at Arctic climate change