Ever wonder why your dog sticks its head out of the window while you drive around?
Mental Floss has a pretty succinct answer. Dogs have 225 million scent receptors, compared to humans who have 5 million. Still confused? This quote sums it up nicely:
When a dog sticks its head out the window, it’s like pigging out at a hi-definition all-you-can-smell scent buffet.
Read more over at Mental Floss right here.
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