Posts Tagged ‘canine research’

How having a dog can actually protect you from sneezing fits!

Friday, July 6th, 2012
dog allergies

Dog bless you!

We already know that pets calm and soothe us, reducing stress levels, lowering our blood pressure, and also keeping us in good shape (as long as we don’t keep couch-potatoes). As if passionate pet owners need additional convincing that dogs are good for our health, new research has found even more evidence that dogs contribute to better physical health, in the form of protection from asthma and other kinds of respiratory viruses.

Researchers from UC San Francisco and the University of Michigan have found that dust from houses where dogs are present may actually provide protection from respiratory syncytial virus (RSV), a respiratory virus that is associated with a higher risk of developing childhood asthma. There has already been some research to show that children who grow up with house pets show increased protection from developing asthma, and this is the latest lab research to provide even stronger evidence to support this claim.

To test whether dogs in fact do provide added protection against developing asthma, the researchers conducted a study using three groups of mice (the scientific lab stand-ins for children, I suppose). They exposed one group of mice to house dust collected from homes that also had one or more dogs as a pet, and then exposed this group of mice to RSV. Another group of mice was not exposed to house dust but was also exposed to the virus. A final group of mice was exposed neither to the house dust or the RSV.

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Why dogs roll in dead (or other disgusting) things

Tuesday, April 26th, 2011

You’re taking your dog for a walk, perhaps down a verdant trail through the forest, or maybe along the beach, when your dog starts sniffing the ground with a bit more “focus” than is usual. He then starts acting as though he’s sniffed out the most delicious, intoxicating scent and is no longer responding to your calls, his name, or pulls on the leash. All of a sudden, he’s writhing on the ground, as though he’s having some kind of trance-induced fit in paroxysms of what could only be called pure and utter ecstasy, to anyone looking on.

At first it’s kind of alarming, and then becomes quite amusing, until… you realize just what is causing his frenzied rapture. When you get a glimpse (or a whiff) of the dead [bird, fish, mouse, squirrel] or other fill-in-the-deceased-animal here or slimy sea-goo, bird- or dog-poo, or other foul and naturally sticky substance, you start freaking out in alarm and sheer disgust.

So why on earth do dogs enjoy rolling in putrid smelling filth? Scientists don’t know for sure why dogs have this particular instinct, but one thing is certain: it is an instinct, and it’s not unique to your dog. As for what’s behind the instinct, there are a few theories:

The most popular theory is that it’s a holdover from their wolf ancestors: dogs roll around in smelly (to us: the most disgusting) things to camouflage their own natural odor. Masking their scent would have helped wolves sneak up on prey, enabling them to be more effective hunters.

Another idea is that dogs cover themselves in odoriferous substances to signal to other dogs that they’ve found something interesting. As you know, dogs sniff each other not only to “say hello” but to gain information about each other. Thus, your dog will be communicating: “Exciting news! There’s something deliciously dead nearby!”

Still another idea is that dogs have a primal instinct to thoroughly roll on dead things from their past as hunters: scent-marking the scent-maker (the dead animal) is a good way to publicly claim that carcass and keep any other scavengers away. Even though a bowl of organic, gourmet dog food may be waiting for him at home, he isn’t going to pass up the opportunity to signal “this is mine!”

Regardless of the reason for it, you know the outcome (as he soon will): right into an earthbath! He smells terrible!casino aussie