Lampreys are tough, hungry, and invasive. Michigan and Canada have been fighting them for over half a century. Now, with the aide of pheromones, they may have found a new way to eradicate the lot of them.
The lamprey—a jawless, toothy suction funnel that looks like it sprung to life out of the Alien storyboards—is the sort of creature whose existence most of us would prefer not to dwell on. But lampreys are among the most efficient swimmers on Earth, and their unusual stroke could help engineers design low-cost…
It seems hungry birds have been snatching the lampreys from their watery spawning grounds and dropping them over land when they lose their grip on the long, wriggly, toothy fish.
Lampreys are parasites that look like slimy eels with mouths that are ringed with several layers of jagged teeth. In some areas, like the Great Lakes of the United States, they've become an invasive pest that kills local trout and other valuable fish.