Video: Inside the Extraordinary Nose of a Dog

The value of dogs as search-and-rescue animals is well established around the world. But what is it about dog noses that allows them to do this remarkable work? It turns out that scientists know very little about the inner workings of the dog’s olfactory system, but they are trying to change that. A fascinating story on the “PBS Newshour” site describes what researchers have learned so far, and it’s incredible stuff.

Click here for the full story.

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