Researchers have found that a dense network of blood vessels in a reindeer's nose do indeed make it rosy.
The animals have 25 percent more capillaries carrying red, oxygen-rich blood in their noses than humans, say researchers from the Erasmus Medical Center in Rotterdam, the Netherlands, and the University of Rochester in New York.
"In colder climates and also when they are higher up in the atmosphere pulling Santa's sleigh, the increase in blood flow in the nose will help keep the [nose's] surface warm," said Dr. John Cullen of the University of Rochester.
The scientists wrote about their findings in the British Medical Journal.
Photo: Flickr/Getty Images
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I love all pets. I wouldn’t be a veterinarian if I didn’t, and I celebrate the human-animal bond every day. I do look forward, though, to the day when these five breeds aren’t as popular. The reasons vary, but in many cases the problems are health-related, and overbreeding by puppy mills and other less-than-ideal operations has a lot to do with that. What would help these breeds is for there to be a lot less of them. A couple of them need many more adopters and far less breeding, and all would benefit from people who are well-prepared for the challenges of owning a dog, and who make sure to look to rescue, shelters and reputable breeders for their pets. As always, whatever pet you choose, we veterinarians are here to help you make healthy choices for life.
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