Bed bugs are parasitic insects that feed on the blood of humans. Adult bed bugs look similar to an apple seed, approximately 1/4 of an inch long, oval in shape and are reddish-brown in color. Juvenile bed bugs (“nymphs”) differ from adults in that they are often much smaller (1 millimeter) and may appear clear or tan in color. Bed bugs prefer to live in protected areas near to where people sleep or rest for periods of time, such as the seams of mattresses, behind headboards, or inside furniture. Learn more about bed bugs by visiting our pest library!