Lakes where sea lamprey control efforts were most cut back during the COVID-19 pandemic had the biggest surge of the invasive species, a study found.

Meet the nightmare of the ocean the tongue-eating parasite. This bizarre creature latches onto fish, replaces their tongue, and lives inside their mouth like something out of a horror movie.

Sam’s shot revealed three different, but interconnected, life forms. This fish had a tongue-eating louse in its mouth – a parasite that attaches itself to the base of a host’s tongue in order to suck ...

Sea lampreys are a parasite, feeding by attaching to fish with their suction mouth, using their tongue to rasp a hole through the fish's skin, and consuming the blood and juices that flow out.