Researchers have discovered the 425-million-year-old fossil remains of a new species of parasite, still attached to the host animal it invaded long ago. Researchers have discovered the ...

Panic strikes the people in Taiwan after a fisherman caught an unidentified creature on tape. The alien-looking slimer looks like a long worm with bright green color and distinct pink tongue. Not a ...

This 3-D reconstruction shows two pentastomids (tongue worms), in orange. They are invading a host animal, represented by the other colors. One of the tongue worms is located inside the shell.

Researchers have discovered the 425-million-year-old fossil remains of a new species of parasite, still attached to the host animal it invaded long ago. The new species is a type of tongue worm, an ...