In the waters of Oswego Harbor, New York, a recent aquatic survey turned up a catch that biologists are calling "one in a million." What we know: Last month, crews from the U.S. Fish and Wildlife Service (USFWS) pulled a saturated, yellow-orange fish from the water.

It was a native burbot exhibiting a highly unusual genetic mutation.

The burbot is a native freshwater species, but experts say you wouldn't normally spot one displaying the bright colors of autumn foliage.