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Nematomorpha (sometimes called Gordiacea, and commonly known as horsehair worms, hairsnakes, [1] [2] [3] or Gordian worms) are a phylum of parasitoid animals superficially similar to nematode worms in morphology, hence the name. Most species range in size from 50 to 100 millimetres (2.0 to 3.9 in), reaching 2 metres (79 in) in extreme cases ...
The G. pulchrum parasite is a nematode worm of the order Spirurida. It is a relatively thin nematode, and like other worms within its class, it has no circulatory or respiratory system. Most other Gongylonema species infect birds and mammals: there are 25 species found in mammals and 10 species found in birds. [citation needed]
Johann Georg Roederer, professor of obstetrics, examined the worms and identified them as roundworms, giving the description and the name Trichuris (Greek θρίξ/thríx, for hair, and οὐρά/ourá, tail). [13] However, Roederer mistook the thread-like head for the tail. [15]
Once ingested by the insect the worm larva penetrates the gut wall and develops in a cyst in the tissue outside. [4] It emerges as an adult worm in a few months. [3] Gordius worms have been recovered from human vomit, [7] feces, [8] and urine. When worms are expelled from the gastrointestinal tract, their mode of entry was likely ingestion of ...
Canadian and U.S. folklore holds that the relative amounts of brown and black hair on a larva indicate the severity of the coming winter. It is believed that if a Pyrrharctia isabella 's brown band is wide, winter weather will be mild, and if the brown band is narrow, the winter will be severe. In a variation of this story, the color of stripes ...
Due to being adapted to live inside hair follicles, D. folliculorum is thin and worm-like, with short legs. [6] As an adult, D. folliculorum measures 0.3 to 0.4 mm (0.012 to 0.016 in) long. [7] Adults have four pairs of legs; larvae and nymphs have only three pairs. [7] D. folliculorum has a rudimentary gut and anus. [4] [8]
Some say it looks an awful lot like Donald Trump's 'do. They post serious damage to trees, but can also harm humans. Stings from this toxic creature can cause headaches, nausea, vomiting, chest ...
Life cycle of Trichuris trichiura inside and outside the human body. The female T. trichiura produces 2,000–10,000 single-celled eggs per day. [3] Eggs are deposited from human feces to soil where, after two to three weeks, they become embryonated and enter the "infective" stage.