A vampiric, ray-finned fish is reportedly startling fishermen and tourists in the Great Lakes, but an aquatic wildlife organization says it has gotten the population under control despite recent ...

Diver Karl Bly took a video he shot this week of a “vampire fish” he saw in the American River in Sacramento — the second one he’s seen in 30 years ...

This article originally appeared on Undark. It’s a gray morning on Lake Ontario when Will Sampson, a sports fishing guide and recreational angler, sees one of the fishing reels on his father’s boat ...

If you've ever caught a rainbow trout from Catharine Creek or Seneca Lake, you might have noticed the ugly circular scars sported by many of the fish. Those are from the bite of parasitic sea lampreys ...

Researchers from the Institute of Vertebrate Paleontology and Paleoanthropology (IVPP) of the Chinese Academy of Sciences and their collaborators have reported two extremely rare fossil lampreys from ...

A cross-border program keeps sea lamprey populations at bay. But a two-year pandemic disruption was never part of the plan. By Rebecca Redelmeier / Undark Posted on Sep 7, 2022 This article was ...

Beach-goers were aghast after a bloodsucking sea beast the size of a child washed ashore in the UK, sparking comparisons to the supersized sandworms from “Dune.” A photo of the parasitic critter made ...