Dogs are considered man’s best friend because of their close relationship, loyalty and companionship with humans. Based on this definition, Dr. Anna Coffin says the brown dog tick should be considered dog’s best friend.
Deer Tick Deer ticks feed on many types of mammals, including people. The adults are reddish-brown and thrive in wooded areas of the Northeast and Midwest. They are dangerous because they can transmit Lyme disease to dogs and people. Lyme disease can cause fever and joint pain and, occasionally, serious kidney disease in dogs.