Many factors can affect a dog's ability to smell, including age, sex, breed, disease, diet and environmental conditions. As dogs grow older, their performance and ability to learn new smells is รขโ‚ฌยฆ Olfaction in dogs is crucial for gathering important information about the environment, recognizing individuals, making decisions, and learning.

Dogs have an estimated 50 times more olfactory receptors in their noses than humans, making their sense of smell significantly more acute. While humans have around 5 million olfactory receptors, รขโ‚ฌยฆ