

It absorbs the nutrients from the skin of the host. The horsehair worm larvae, however, grow and develop by consuming the nutrients from the body of its host.

So, their digestive system doesn’t function, and thus, they do not feed anything but lay eggs in freshwater. The primary purpose of adult horsehair worms is reproduction before they die. They mature in the body cavity of host insects. Horsehair worms are parasitic but are harmless to humans, plants, and animals. They also look like Gordian knots, named after the Greek legend that the King Gordius of Phrygia used to tie intricate knots. These curious creatures are often found in a contorted position, which makes them look like a loose ball of thread. They are referred to as horsehair worms because they are as thin as a horse’s hair. However, they are much longer (about 4 inches or more) and found in water bodies, such as ponds, sinks, bathtubs, puddles of rainwater, toilets, and alongside lakes and rivers. Horsehair worms come from the family of Nematomorpha and look similar to nematodes.
