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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.
Ixodes scapularis is commonly known as the deer tick or black-legged tick (although some people reserve the latter term for Ixodes pacificus, which is found on the west coast of the US), and in some parts of the US as the bear tick. [2] It was also named Ixodes dammini until it was shown to be the same species in 1993. [3]
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.
Common hardback tick: Adult female, Adult male Common hardback tick was used in The Northern Herald, Sydney (August 1996). This expression perhaps emphasises that Ixodes holocyclus is indeed a 'hard tick' and that it is also the most common tick encountered by humans and animals in the Sydney region. Bottle tick or blue bottle tick: Adult female
Amblyomma americanum, also known as the lone star tick, the northeastern water tick, or the turkey tick, is a type of tick indigenous to much of the eastern United States and Mexico, that bites painlessly and commonly goes unnoticed, remaining attached to its host for as long as seven days until it is fully engorged with blood.
Ticks have the ability to spread Lyme disease, Powassan virus, Rocky Mountain Spotted Fever and other potentially deadly illnesses. Early detection and removal are key factors in stopping the ...
Nymphal ticks primarily feed on small animals and humans during the spring and early summer, while adult ticks are most active during the winter and seek out hosts from late fall to spring. [ 5 ] In order for a human to be infected by the bacterium, the tick carrying it must be attached for approximately 36 to 48 hours.
Ixodes ricinus, the castor bean tick, is a chiefly European species of hard-bodied tick. It may reach a length of 11 mm (0.43 in) when engorged with a blood meal, and can transmit both bacterial and viral pathogens such as the causative agents of Lyme disease and tick-borne encephalitis .