Meet the tongue-eating isopod, the parasite that literally becomes your tongue (if you're a fish)

Meet the giant isopod. The largest—and one of the most mysterious—of the isopods, a group of crustaceans. It can grow up to 40 centimeters long! Discovered back in 1879, this bizarre creature still holds many secrets, as scientists have yet to fully study its biology and behavior. Living in the extreme depths of the deep sea, more than 1,600 feet (500m) below the surface, the giant isopod thrives in total darkness. Down here, where sunlight is almost non-existent, it’s all about scavenging for a

The Tongue-Eating Louse: Isopod Features and Taxonomy Facts

What is an isopod? - NOAA Ocean Exploration