Ticks are in the phylum of animals called Arthropoda (jointed
appendage). This phylum of animals is the largest in the animal
kingdom. There are over 850 different species of ticks, and they
parasitize every class of terrestrial vertebrate animal, including
amphibians.
Ticks are small rounded arachnids that cling to one spot and do not
move. They have inserted their head under the skin and are engorging
themselves on the blood. Diseases carried by ticks means that you
should have yourself or your pets checked after you find ticks. On
the one hand, ticks are a little easier to deal with since they remain
outdoors, and do not infest houses the way fleas do; on the other
hand, they carry more dangerous diseases and are harder to find.
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