A Dog's Senses

Sight	Since a dog's eyes are located farther apart than ours, dogs can detect movement at greater distances than a human. They can also see better in less light, but have trouble distinguising many colors, and can't see well up close.
Sound	Dogs can hear about four times better than a human. They are expecially good at hearing high pitched sounds that are out of the humans range. Sounds include barks, whimpers, moans, and whines.
Smell	A dog's nose is his greatest sensory organ. Their sense of smell is so great that they can follow a trail that's weeks old, detect odors diluted to 1/1,000,000 the conentration humans would need to notice them, and can even sniff out a person under water.
Taste	Dogs have fewer taste buds than humans do, so they're likely to try anything. Dogs are omnivores which means they eat both plants and animals, same as humans do.