Cats’ and dogs’ senses of smell are much greater than that of human beings. In fact, a cat’s sense of smell is estimated to be 14 times stronger than the average human's, and a dog’s sense of smell is thought to range from 1,000 to 1 million times more powerful than a human's. Olfactory receptors are proteins that are located within the nose and are responsible for helping the brain process odors. The average human nose contains 5 million olfactory receptors, and cats' noses have as many as 80 million. Dogs’ noses are thought to contain as many as 300 million olfactory receptors.
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anon992253
Post 2 |
There's actually a kind of shrimp with fifteen color receptors, whereas most humans have only three. What it really makes you wonder about is all the colors we're missing out on - what they'd look like and be called. |
Chmander
Post 1 |
It's not just cats and dogs, but a lot of animals have a keen sense of smell. It's amazing how much greater it is than ours. In fact, imagine if humans had that kind of sense. |