Would you like to switch to the accessible version of this site?

Go to accessible site Close modal window

Don't need the accessible version of this site?

Hide the accessibility button Close modal window
Accessibility View Close toolbar
Edisto Pet Clinic

1309 Springdale Dr

Orangeburg, SC 29115 US

803-533-0153

Open mobile navigation
  • Home
  • New Patient Center
    • Online Forms
    • What to Expect
    • Virtual Office Tour
    • Veterinary Resources
    • Payment Options
  • About Us
    • Services
    • Meet Our Team
  • Clinic Hours
  • Online Resources
  • Contact Us
  • Blog
  • Veterinary Topics
    • Pet Health
      • Chronic Conditions
      • Digestive and Oral Health
      • Diseases and Viruses
      • Pests and Parasites
      • Orthopedics
    • Today's Veterinarian
    • Choosing Your Pet
      • Finding Your Pet
      • Cats
      • Dogs
      • Exotics
        • Amphibians
        • Birds
        • Reptiles
          • Lizards
          • Turtles
      • Small Mammals
        • Ferrets
        • Rabbits
        • Domesticated Animals
          • Prairie Dogs
        • Pocket Pets
          • Chinchillas
          • Guinea Pigs
          • Hamsters
          • Hedgehogs
          • Rats
      • Livestock
        • Cows
        • Donkeys, Horses & Mules
        • Goats
        • Pigs
        • Poultry
        • Sheep
    • Living With Your Pet
      • Bringing Your Pet Home
      • Children and Pets
      • Providing Care
      • Travel
      • Saying Goodbye
    • Newsletter Library
      • Tips for Pet Owners
      • Behavior & Training
      • Fleas & Parasites
      • Keeping Pets Healthy
      • Cats
      • Recognizing Illness
      • Nutrition & Food
      • Pet Dangers
      • Seasonal Topics
      • Visiting the Vet
      • Equine
      • Newsletter Archive
        • Fun with Pets
        • Unbelievable Pets
    • Video Newsroom
      • Health Topics
      • Technology and Science
      • Other Interests
    • Client Survey
    • Pets4Kids
  • Online Pharmacy
  • Home >
  • Articles >
  • Newsletter Library >
  • Newsletter Archive >
  • Unbelievable Pets >
  • The Incredible Sense of Smell in the Dog

The Incredible Sense of Smell in the Dog

  • Created in Newsletter Library, Newsletter Archive, Unbelievable Pets
Image of a dog smelling the air.

There are many ways in which people and dogs are similar, but an area in which dogs are much superior is in their olfactory ability, or their sense of smell. Dogs can smell 100,000 times better than humans. In tests, dogs have been able to detect a chemical in a solution diluted to 1 to 2 parts per trillion. The human brain has a large area devoted to vision, while dogs have a large portion dedicated to olfaction, in fact, 40% more of a dog's brain than a human's is committed to smell. The average person has 5 million smell receptors, while the average dog, depending on breed, has 125 to 250 million smell receptors. The Bloodhound has an incredible 300 million smell receptors! Dogs can smell things up to 40 feet underground. Dogs can even smell human fingerprints that are a week old!

Part of the reason dogs have an excellent sense of smell is the moist leathery surface of the nose determines the direction of air currents. Also sniffing brings air with scents directly into the nostrils and then onto the moist surfaces inside the nasal cavity which catches the molecules so the dog's internal receptors can decode them. It is believed that even long ear flaps can help their sense of smell by stirring up odors close to the ground.
People have taken advantage of this incredible sense of smell and trained dogs to detect certain odors. One of the more unusual objects that dogs have been trained to find is whale feces.

Whale researchers for years have been stymied by their inability to test whales in the wild. It was then discovered that whale poop could give them information on diet, genetics, hormone status, level of toxins, etc. But how to find enough whale feces to get significant findings? Whale feces floats for only about 30 minutes. One research group found only five samples in two weeks by searching on their own. Then Tucker and Fargo came into their lives. Tucker is a Labrador mix -breed dog who searches for Orca whale feces in Puget Sound, and Fargo is a Rottweiler who finds right whale poop in the North Atlantic.

With the dogs on board, the research teams have found as many as 12 samples a day. At first their success rate was less, only because the researchers underestimated the distance at which the dog could detect the odor. With time the researchers learned that when the dog signaled , they should point the boat in the direction of the dog's nose and keep going until they found the feces; this has been as far as 1.2 miles. As one researcher said," The lowest-tech method turns out to be the most effective." Findings from these studies show that the orcas have had a drop in thyroid hormone; the researchers attribute this to a poor food supply. This could explain why orcas had a 20% decline in population in the last decade in Puget Sound.

The Atlantic study has not found the reason for the poor reproduction of the right whale since a hunting ban went into effect 70 years ago. From a low of 100 whales, the population is now only about 300, while 100,000 used to swim those waters. Research continues as long as the dogs keep finding samples!
Another amazing example of dogs detecting unusual things is the study that showed that dogs can identify people with cancer by smelling the person's breath or urine. The person's breath was used to find lung and breast cancer; urine was used to detect bladder or prostate cancer. The dogs were accurate 99% of the time for lung cancer, and 88% of the time for breast cancer! This is equal or better than high tech techniques such as scans. This study was done with only two to three weeks training using pet dogs and the only previous preparation was basic puppy training.
For centuries dogs have helped people with hunting, herding, and protection. These examples clearly show that dogs are capable of much more. Only our imaginations may limit what dogs might do in the future.

  • Pet Health
    • Chronic Conditions
    • Digestive and Oral Health
    • Diseases and Viruses
    • Pests and Parasites
    • Orthopedics
  • Today's Veterinarian
  • Choosing Your Pet
    • Finding Your Pet
    • Cats
    • Dogs
    • Exotics
      • Amphibians
      • Birds
      • Reptiles
        • Lizards
        • Turtles
    • Small Mammals
      • Ferrets
      • Rabbits
      • Domesticated Animals
        • Prairie Dogs
      • Pocket Pets
        • Chinchillas
        • Guinea Pigs
        • Hamsters
        • Hedgehogs
        • Rats
    • Livestock
      • Cows
      • Donkeys, Horses & Mules
      • Goats
      • Pigs
      • Poultry
      • Sheep
  • Living With Your Pet
    • Bringing Your Pet Home
    • Children and Pets
    • Providing Care
    • Travel
    • Saying Goodbye
  • Newsletter Library
    • Tips for Pet Owners
    • Behavior & Training
    • Fleas & Parasites
    • Keeping Pets Healthy
    • Cats
    • Recognizing Illness
    • Nutrition & Food
    • Pet Dangers
    • Seasonal Topics
    • Visiting the Vet
    • Equine
    • Newsletter Archive
      • Fun with Pets
      • Unbelievable Pets
  • Video Newsroom
    • Health Topics
    • Technology and Science
    • Other Interests
  • Client Survey
  • Pets4Kids

Featured Links

Click to find out more

  • Services

    We strive to provide complete care for our patients. Learn more about all the services we provide.
  • Make An Appointment

    We will do our best to accommodate your busy schedule. Schedule an appointment today!
  • Online Forms

    Our patient forms are available online so they can be completed in the convenience of your own home or office.

Office Hours

Our Regular Schedule

Monday:

8:00 am

5:00 pm

Tuesday:

8:00 am

5:00 pm

Wednesday:

9:00 am

12:00 pm

Thursday:

8:00 am

5:00 pm

Friday:

8:00 am

5:00 pm

Saturday:

Closed

Sunday:

Closed

Location

Find us on the map

Testimonial

Read What Our Clients Say

  • "Testimonial Coming Soon..."

Featured Articles

Read about interesting topics

  • March Newsletter: Care Tips for Your Pocket Pets

    Do you follow these pocket pet care guidelines? ...

    Read More
  • March Newsletter: First Time Pet Owner? Here's What You Need to Know

    Bring a pet home soon? Take a look a few things you should know. ...

    Read More
  • Caring for Your Older Pet

    Many of the same problems that affect people as they age, such as arthritis and diabetes, can also affect your pet. Making a few changes to the way you care for your furry friend will help you ensure that your pet stays healthy and happy as the years go by. Look for Common Signs of Illness Changes ...

    Read More
  • February Newsletter: Weird Things Your Cat Does and What They Mean

    Looking for an explanation for your cat's strange behaviors? ...

    Read More
  • February Newsletter: Where to Start When Training Your Puppy

    Is your puppy ready to be trained? ...

    Read More
  • January Newsletter: National Bird Day

    Got any plans for National Bird Day? ...

    Read More
  • January Newsletter: Don't Forget to Vaccinate Your Pets this Year

    Is pet vaccinated? ...

    Read More
  • December Newsletter: Cold Weather Tips for Your Pets

    Are your pets ready for winter weather? ...

    Read More
  • December Newsletter: Pets and the Holidays: What to Know before Feeding Your Pet Table Scraps

    Could holiday table scraps cause health woes for your pets? ...

    Read More
  • November Newsletter: How arthritis can affect your pet

    Could your pet have arthritis? ...

    Read More

NEWSLETTER SIGNUP

Sign up for more articles

Connect With Us

  • Copyright © 2023 MH Sub I, LLC dba iMatrix.
  • Admin Log In
  • Site Map