http://blogs.discovermagazine.com/crux/2...ar-window/
EXCERPT: . . . Sticking heads out of windows, understandably, hasn’t gotten much attention in animal behavior research. But experts have a pretty good hunch as to why an open car window is your dog’s idea of a good time. And it’s not because Rover is glad to be getting out of the house for a bit.
“Dogs receive more olfactory stimulation with their heads fully outside the car versus inside the car. And even having the windows down only a few inches seems to provide enrichment and stimulation that dogs will seek out,” says Natalie Zielinski, director of behavior services at the Wisconsin Humane Society.
The canine olfactory system is highly developed and far superior to ours. For starters, a dog’s nose is equipped with a complex maze of 300 million scent receptors, compared to our measly 5 million. The more receptors, the more sensitive the nose is. And dog noses aren’t just cute — they’re practically designed to savor smells. Dogs have two air passages, one for breathing and one dedicated to smelling. To top things off, the canine olfactory cortex, the part of the brain responsible for processing smells, is 40 times larger than that of a human. (MORE - details)
EXCERPT: . . . Sticking heads out of windows, understandably, hasn’t gotten much attention in animal behavior research. But experts have a pretty good hunch as to why an open car window is your dog’s idea of a good time. And it’s not because Rover is glad to be getting out of the house for a bit.
“Dogs receive more olfactory stimulation with their heads fully outside the car versus inside the car. And even having the windows down only a few inches seems to provide enrichment and stimulation that dogs will seek out,” says Natalie Zielinski, director of behavior services at the Wisconsin Humane Society.
The canine olfactory system is highly developed and far superior to ours. For starters, a dog’s nose is equipped with a complex maze of 300 million scent receptors, compared to our measly 5 million. The more receptors, the more sensitive the nose is. And dog noses aren’t just cute — they’re practically designed to savor smells. Dogs have two air passages, one for breathing and one dedicated to smelling. To top things off, the canine olfactory cortex, the part of the brain responsible for processing smells, is 40 times larger than that of a human. (MORE - details)