The nose knows

(Camera: Nikon D300. Lens: Nikkor 70-200mm @ 200mm. Exposure: 1/500th sec. @ f/8. ISO: 200)

According to the Natural History Museum of Los Angeles County’s Dogs: Wolf, Myth, Hero & Friend website, dogs have an amazing sense of smell. Among its evolutionary purposes, the dogs use smell to greet and identify each other. That’s why humans invented the handshake and the drivers license.

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