Latest Parasitism Stories
A cluster of tapeworm eggs discovered in 270-million-year-old fossilized shark feces suggests that intestinal parasites in vertebrates are much older than previously known.
Researchers say climate change in Madagascar could cause disease-carrying lemur parasites to grow and reproduce more quickly, spreading to new areas and presenting a potential danger to the human population.
Long ago, when life on our planet was in its infancy, a group of small single-celled algae floating in the vast prehistoric ocean swam freely by beating whip-like tails, called flagella.
A new study demonstrates for the first time how the Toxoplasma gondii parasite enters the brain to influence its host's behavior.
Parasites are unpleasant lodgers at the best of times, but there is one group of parasites that is particularly pernicious.
When herbivores such as caterpillars feed, plants may "call for help" by emitting volatiles, which can indirectly help defend the plants.
When humans have parasites, the organisms live in our bodies, co-opt our resources and cause disease.
In relationships based on mutuality, the number of individuals involved can determine the rate at which species evolve
You may want to start washing your hands after petting fluffy, because new estimates indicate that 350,000 people a year in the United Kingdom become infected with toxoplasmosis.
The lancet liver fluke (Dicrocoelium dendriticum) is a parasitic worm that is classified within the Platyhelminthes phylum. It is thought to be native to over thirty countries including Switzerland, Spain, Germany, Iran, China, Vietnam, Japan, Ghana, and Nigeria, among many other areas. It is also found in South and North America and in Australia. It is typically found in cattle or other grazing species, so it is thought to prefer a habitat that supports these species. It is similar in...
Profilicollis is a genus of acanthocephalan parasites that are found in crustaceans and shorebirds. Profilicollis parasites use decapod crustaceans as intermediate hosts and species of shorebirds as definitive hosts. The parasite first develops in mole crabs of North and South America. After it infects a mole crab, it becomes dormant until the crab is eaten by a suitable bird, such as a Surf scoter or Herring Gull. Once the parasite has passed through the stomach of the bird, it develops...
Moniliformis moniliformis is a species of acanthocephalan parasite that can infect humans, though it rarely does. Human infections have been reported in the United States, Iran, Iraq, and Nigeria. It has been found in rats all over the world, and usually is found in cats, dogs and, in Poland, red foxes. Intermediate hosts are usually beetles and cockroaches. This parasite, like other acanthocephalans, does not have a digestive tract. It absorbs nutrients through the tegument (external...
The Giant Thorny-headed Worm (Macracanthorhynchus hirudinaceus) is a species of acanthocephalan parasite found in the intestines of pigs and other hoofed animals, and can occasionally appear in humans and dogs. The eggs of this parasite are usually found in scarabaeoid or hydrophilid beetles and other similar insects. Worms of this species range in size from less than four-hundredths of an inch to over 15 inches. It causes enteritis, gastritis or peritonitis in affected hosts. While it...
- In medieval musical notation, a sign or neume denoting a shake or trill.