Wednesday, April 9, 2014

A dog's smell in numbers

Most dog owners know their furry friends have a fantastic sense of smell. Put into numbers, the dog's nose is truly amazing.

  • Dogs can smell about 1,000 times better than humans. A human has about five million smell-detecting cells, while the average dog has more than 220 million. The part of the brain that interprets all this information is four times larger in dogs than in humans.
  • Some dogs can smell dead bodies under water. They can smell where termites are hiding, and natural gas buried under 40 feet of dirt.
  • Trained dogs can detect cancer too small to be detected by medical equipment, and can find lung cancer through sniffing a person's breath.
  • Dog nose prints are as unique as human finger prints, and can be used to identify them.
  • A dog's nose being wet means it can collect more of the tiny droplets of smelly chemicals in the air.
  • The Catalburun has a split nose.

Besides the nose, a pair of average dog ears also outclass humans. A dog can locate the source of a sound in 1/600 of a seconds, and can hear sounds four times further away than a human.

~ Maria Sadowski ~


  1. We nose we have good noses! Our nose work stuff always amazes Mom.

    1. I'm fascinated by the nose prints, as unique as finger prints. Dog noses are so cute, and what fascinating abilities!