We all appreciate a refreshing breeze from time to time, but when a dog stops to enjoy the wind or sticks its head out a car window, there's more to it than simply a pleasing sensation.
Another reason dogs like a little wind in their faces is because of all the information they can gather.
With 220 million olfactory cells in their snouts, dogs can detect scents up to a million times better than we can.
They also have secondary olfactory system known as the Jacobson's organ, a patch of sensory cells located in the main nasal chamber with nerves that share detected chemical information directly with the brain.
These two smell-detecting systems enable dogs to pick up on all kinds of sensory information, so when you see a dog with its face directed toward the wind, he’s not just enjoying the breeze — he's also investigating his surroundings.
Below, take a look at some happy windswept canines.
A dog's mouth is caught up in the wind.
An Afghan hound with a luxurious mane marches against strong winds.
A tiny Yorkshire terrier braces against the wind.
A puppy is puffed up by the wind.
A windswept Shetland sheepdog hangs out along a scenic shoreline.
A beautiful Shih Tzu dog enjoys a windy day.
(Photo: Johan Wieland/Flickr)
A laid-back dog's ears flap in the wind.
A curly-haired dog flinches at a sudden gust of wind.
(Photo: lju photo/Flickr)
A long-haired pup relaxes on a windy day.
A long-haired dachshund hangs out at a windy beach.
A gorgeous Afghan hound bounds through the grass.
(Photo: Andrew Feicht/Flickr)
A windswept dog hangs out of a car window.
A fluffy dog meditates on a windy hillside.
A small dog pauses to enjoy the cool breeze.
There's nothing more majestic than a sheepdog in the wind.
A cute, little dog enjoys a windy ride on a boat.
Editor's note: This story was originally published in January 2015 and has been updated with new images.