Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Quadrigyridae - Quadrigyridae is the only family within Gyracanthocephala an order of parasitic worms of class Eoacanthocephala. This family contains two subfamilies ten genera and about 92 species.
The answer to this question is:
Animal