Beyond taste bud comparisons, Tavor White shares science references on dogs and savoring flavor. According to Alexandra Horowitz, dogs have 300 million olfactory receptor cells compared to five million in humans. Add that the part of their brain that analyzes smells is approximately 40 times bigger than ours and a dog’s sense of smell is up to one million times greater than ours. Researchers say that 80 percent of flavor is smell.
Dogs may be lacking the number of taste buds we have, they more than make up for it through their sense of smell and some extra taste receptors.”
Source: Animal Wellness, February 11, 2020. Link.