Picture Id: 509479
Lamprey eels clinging to glass at the Bonneville Dam on the Columbia River. No te sucker mouths one these adult fish. The Pacific lampreys are parasites (the y damage their hosts), whereas, the Atlantic lampreys are predators (killing th eir hosts). Orientation of slide: horizontal, with suckers on left. Columbia River, Washin gton side.
COLUMBIA RIVER, WASHINGTON.
DARLYNE A. MURAWSKI/National Geographic Creative