Bed bugs feed primarily on which host?

• A. Humans
• B. Dogs
• C. Birds
• D. Rodents

Answer: (A)

Bed bugs are hematophagous insects that rely on blood meals to grow and reproduce. In human dwellings, they have evolved to find and feed on humans efficiently. They detect hosts by cues like body heat and carbon dioxide and typically feed at night when a sleeping person exposes skin. Humans provide the most reliable, continuous source of blood in homes, which is why bed bugs are most often described as human feeders. They can bite other warm-blooded animals if available, but those hosts aren’t as consistently accessible in typical living environments, making them less common than humans.