Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
4 Answers
- ChetcoLv 71 decade agoFavorite Answer
A dog's sense of smell is said to be a thousand times more sensitive than that of humans.
In fact, a dog has more than 220 million olfactory receptors in its nose, while humans have only 5 million. Because of this keen sense of smell, dogs are able to locate everything from forensic cadaver material to disaster survivors as demonstrated during the terrorist attack on the World Trade Center on September 11, 2001.> http://www.aces.edu/pubs/docs/U/UNP-0066/ <<< more about dog's nose.
Source(s): dog breeder since 1968 - 1 decade ago
Dogs have approximately 200 million scent receptors (humans have about 5 million). Bloodhounds tend to have more, which is why they are so often used for scent detection.
