How Powerful Is a Canines Nose?

Dogs have more than 100 million sensory receptor sites in their nasal cavity. In comparison, humans have 6 million sensory receptor sites in their nasal cavity. The canine brain has an area devoted to perceiving odours that is 40 times larger than that of the human brain.

It is estimated that dogs can smell between 1000 – 10,000 times better than people, which is why dogs can sniff out and detect illegal drugs, cancerous cells, and explosives so effectively.

Unlike humans, dogs have an additional olfactory tool call the Jacobsens organ that increases their ability to smell. This secondary olfactory system is specifically designed to recognize chemical changes.

Dogs communicate and navigate through life with the same amount of dependency on smell as humans do on vision. Since dogs move their nostrils independently, they can determine the direction that an odour is coming from, allowing them to use their nose as a compass.

Dogs use their sense of smell to identify many things. Some things on the list include – local territory, chemical emotions of people who are anxious or scared, pheromones of a selected mate, their birth mother, your birth mother and more!

If you have any questions, give us a call at 204.253.2668.

Written by: Carly T



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Last updated: August 3, 2021

Dear Clients,

In order to maintain everyone's safety and prevent the spread of COVID-19, the following procedures have been implemented:

If you have a fever, new or worsening cough, shortness of breath, runny nose, nasal congestion, loss of sense of smell, sore throat, painful swallowing, headache, muscle aches, fatigue, loss of appetite, chills, or fever we ask that you do not attend your pet's appointment.

If you have been instructed to self isolate for 14 days due to travel from Eastern Canada, travelled outside of Canada, had contact with someone known to have COVID-19 in the last 14 days, or are waiting for COVID-19 test results we ask that you do not attend your pet's appointment.


We are OPEN with the following hours:

Monday, Tuesday, Thursday: 7:30 am - 6:00 pm
Wednesday: 7:30 am - 8:00 pm
Friday: 8:00 am - 5:00 pm
Saturday: 8:00 am - 3:00 pm
Sunday: Closed


Have you welcomed a new furry family member to your home? We’d love to meet them! Visit our Must Know New Pet Owner Information page for useful resources and helpful recommendations for new pet owners.

Thank you for your patience and understanding and we look forward to seeing you and your furry family members again!

- Your dedicated team at St. Vital Veterinary Hospital