An Overview: HORSEHAIR WORMS (Nematomorpha): Horsehair worms, scientifically known as Nematomorpha, are long, thin parasitic worms often mistaken for strands of hair or horse mane, hence their common name. They are commonly found in freshwater environments such as ponds, streams, puddles, and even water troughs, especially after rainfall. PHYSICAL CHARACTERISTICS Horsehair worms are typically very slender and thread-like, ranging from 10 to 60 cm in length but only a few millimeters thick. Their