Adult bed bugs are brown to reddish-brown, oval-shaped, flattened, and about 3/16 to 1/5 inch long. Their flat shape enables them to readily hide in cracks and crevices. The body becomes more elongate, swollen, and dark red after a blood meal. Bed bugs have a beaklike piercing-sucking mouthpart system Bed bugs do not fly, but can move rapidly over floors, walls, ceilings and other surfaces Female bed bugs lay their eggs in secluded areas, depositing 1, 2 or more eggs per day and hundreds during a lifetime Nymphs can survive months without feeding and the adults for more than a year Bed bugs are active mainly at night. During the daytime, they prefer to hide close to where people sleep Their flattened bodies enable them to fit into tiny crevices — especially those associated with mattresses, box springs, bed frames and headboards Bed bugs usually attack humans, but may feed on other warm-blooded animals, including pets All people are not equally sensitive to bed bug bites, so while some victims break out in rashes from the bites, other people may not display symptoms.