The Nose Knows – Science Fair 2015

The Nose Knows

PrintWho knows if dog noses can be used for identification? Are dog noses unique? I am going to be using dog noses to see if I can identify dogs by their nose print. I am doing this experiment because I love animals. God gave us these creatures to care for and love. If nose prints will identify a specific dog, it might help someone find their lost dog. I believe that nose prints will be like human fingerprints because I see a different nose on each dog, and that is what makes them special and unique.

These words will help you understand my project. Dog nose prints are an image of the dog’s nose surface. Fingerprints are an image of a finger surface. Dogs are a tamed canine. Dye can be food coloring or washable ink and is used to copy the nose print onto a surface so the prints can be compared. Photos are a picture of something and can be used in specialized software for comparison purposes. Unique means one of a kind. High contrast means an image that darkens darks and white in the light areas. Biometrics is using the uniqueness of a person’s face, eye or fingerprint for the purpose of identification and security. Facial recognition software is used for identifying a person from a photo or a video. There are also applications that compare fingerprints and match up the similarities from two prints. The tip of the dog’s nose is called the rhinarium. It is a special type of skin that secretes moisture and has a unique design of dimples, dots and ridges. This information concludes the key terms.

PrintI will be taking several images of each dog’s nose. Those will be compared to make sure the images from the same dog are consistent and reproducible. The rhinarium and the shape of a dog’s nostrils holes or openings, makes a mark that is different enough to identify a specific dog. I did some research on biometric software. I thought I could use that software the same way to identify dogs by their noses. Most biometric software is expensive. The American Kennel Association and the Humane Society both talk about an application called Dognose ID made by a company called ID Systems Integrators. It is not available for some reason. I emailed another company called, a division of Dynamic Ventures that develops custom biometric software. They answered me back and said that it was too expensive to use for my project. It was very difficult to get the prints with ink of the dog’s nose. It did not go well with my test dog because it was hard to figure out how hard to push, press the paper around the whole nose, ink filled in a lot of the holes and it was messy.  Since the ink did not go well, I am not even going to try food coloring.  I am going to use between 2 to 4 high contrast photos of each dog’s nose in my project because the ink will be to messy and the software is too expensive.

If the prints are all the same I will then compare one dog nose print to another dog nose print to see if they are unique. These are the steps I will use in my project.  I will get a list of at least ten dogs to use in my test. Next, I will then make nose prints to see if they will identify the dog. The use of dye on a paper towel or paper will be my process of recording the nose print.  Each print will be done multiple times to see if each dog’s print is consistent. The last step is to see if the dogs have unique nose prints or not.

PrintMy hypothesis is that I am going to look at the high contrast photos of the dogs’ noses and be able to recognize the uniqueness of the rhinarium and the nostrils of each dog. I am going to highlight the similar lines, dots, dimples, and shape of the nostrils holes on each set of photos for each dog. The software is to expensive right now, but one day it should be cheaper. Maybe someday people can use a high contrast print or photo to identify their dog instead of microchips. Now dog owners already can get prints of their dog’s nose for their own records. Sometimes dog owners even have a print of their dog nose on jewelry and artwork to remember the special and unique pet that God gave them. Psalm 139:14 says, “I praise you because I am fearfully and wonderfully made; your works are wonderful, I know that full well.” This verse relates to my experiment because everything God crates is unique.




Jensen, Elle Di. “Can Nose Prints Be Used to Identify a Dog?” EHow. Demand Media, 21 Dec. 2009. Web.

Dickert, Lori T. “Dogs Noseprints Can Be Used to Prove Identity, Just Like Fingerprints.” All Pet News. N.p., 19 Aug. 2011.

Schweitzer, Carolyn. “Those Amazing Dog Noses – Fun Facts about a Chilly Little Organ.” Those Amazing Dog Noses — Fun Facts About A Chilly Little Organ. N.p., 2004.

Care, Perfect Puppy. “Is Your Dog’s Nose Print Unique?” N.p., 14 Sept. 2011. Web.’s-nose-print-unique/

“” Image Recognition Software. N.p., n.d. Web.


“BibleGateway.” .com: A Searchable Online Bible in over 100 Versions and 50 Languages. N.p., n.d. Web.

“Did You Know Dog’s Noses Could Do This? – Blog – Lost Pet Finders.” Did You Know Dog’s Noses Could Do This? – Blog – Lost Pet Finders. N.p., 1 Aug. 2014. Web.

Lieber, Alex. “Nose Printing of Dogs.” Nose Printing of Dogs. N.p., 21 Sept. 2014. Web.

Hutmacher, Kimberly. “Dog Nose Prints.” Dog Nose Prints. N.p., n.d. Web.