Nasty creatures! Had a few on me and the dog after hiking the in the last month. Once you find one on yourself it feels like they are crawling all over you. Do tick checks after spending time in the woods so you can remove them before they transmit lymes disease. There is a lyme disease vaccination and Nexguard for dogs. Nexguard works great for my dog agaisnt fleas and ticks, once they bite they die.