Dogs can smell drugs, dogs smell cancer, dogs even smell each others butts. Sometimes dogs smell bad, and wet dogs smell… well wet. So why do dogs smell bad, and how can dogs smell cancer, bombs, or even recover victims following disasters? To learn more about canine chemistry and get the low-down on why dogs smell bad and why they have such a good sense of smell, watch the enlightening video below.

Feature Image: "Dogs nose". Licensed under CC BY-SA 3.0 via Wikimedia Commons