Endangered smalltooth sawfish in Florida are erratically "spinning and whirling" in shallow waters, causing them to strand themselves and die. The "abnormal fish behavior event" currently defies explanation, scientists say.
"There have been over a hundred unique reports of affected sawfish and now over 30 confirmed mortalities," Adam Brame, the sawfish recovery coordinator at the National Oceanic and Atmospheric Administration (NOAA) Fisheries, told Live Science in an email.
