The answer to 'what is tick' is a small, blood-sucking arachnid that can transmit dangerous diseases to humans and animals. Ticks are parasites that feed on the blood of their hosts, which can include pets, wildlife, and people. They are often found in grassy, wooded areas and can attach themselves to the skin, where they can remain for several days feeding on blood.
Ticks can carry and transmit a variety of pathogens, including Lyme disease, Rocky Mountain spotted fever, and ehrlichiosis, which can cause serious health problems if left untreated. It's important to be vigilant about checking for ticks after spending time outdoors and to promptly remove any ticks that are found.