Rats have

• A. Good vision, poor smell
• B. Poor vision, poor smell
• C. Good vision, good smell
• D. Poor vision, good sense of smell

Answer: (D)

Rats rely more on smell than on sight to find food, navigate, and communicate. Their eyes are relatively small and not highly capable, giving them poor vision, especially in bright light. In contrast, their sense of smell is highly developed, allowing them to detect food odors, pheromones, and scent trails with great sensitivity. This combination is why the correct statement describes rats as having poor vision but a good sense of smell. In pest control, leveraging olfactory cues with attractants helps draw rats to traps or baits, and keeping areas clean reduces those scent trails they would follow. The other options don’t fit because rats don’t have strong vision or weak smell; their strength lies in smell rather than eyesight.