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Ticks are external parasites, living by feeding on the blood of mammals, birds, and sometimes reptiles and amphibians. The timing of the origin of ticks is uncertain, though the oldest known tick fossils are from the Cretaceous period, around 100 million years old. Ticks are widely distributed around the world, especially in warm, humid climates.
The life cycle of ticks can vary depending on the species. Most ticks go through four stages: egg, six-legged larva, eight-legged nymph, and adult. After hatching from the egg, a tick must obtain a blood meal at every stage to survive. Ticks can feed on mammals, birds, reptiles, and amphibians.
Ticks are "very common" in central Ohio, Ohio State University assistant professor Tim McDermott said. The tick that causes Lyme disease, the blacklegged tick, prefers to live in the woods.
Unlike ticks from other genera, [8] deer ticks do not have eyes. [3] [8] The scutum is dark, inornate (plain), and, in unfed females, contrasts with the exposed orange or red remainder of the idiosoma. [3] There are no festoons. [3] [9] Ixodes ticks have an anal groove that resembles a horseshoe [9] on their underside anterior to the anal pore.
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The Ixodidae are the family of hard ticks or scale ticks, [1] one of the three families of ticks, consisting of over 700 species. They are known as 'hard ticks' because they have a scutum or hard shield, which the other major family of ticks, the 'soft ticks' ( Argasidae ), lack.
What ticks to look for in New England. The black-legged tick, also called the deer tick or bear tick, is a carrier of Borrelia burgdorfi bacteria, which causes Lyme disease.
Ticks of domestic animals directly cause poor health and loss of production to their hosts. Ticks also transmit numerous kinds of viruses, bacteria, and protozoa between domestic animals. [1] These microbes cause diseases which can be severely debilitating or fatal to domestic animals, and may also affect humans.