Cause of Big Stone National Wildlife Refuge turtle die-off will remain a mystery
An estimated 200 turtles died in an approximate half-mile stretch of the Minnesota River in the Big Stone National Wildlife Refuge. Laboratory test results of turtle carcass samples collected in April are inconclusive, possibly because of decomposition that occurred before staff discovered the die-off.
3:39 pm, Jul. 25, 2021
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Laboratory results are inconclusive as to the cause of a turtle die-off in the Big Stone National Wildlife Refuge that was reported in April. The remains of both painted turtles and snapping turtles were found. A snapping turtle is shown in this undated photograph.