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5 Interesting Things Dogs Can Sense | What the Stuff?!

Key Facts In This Video

  1. Cancer cells produce waste products that give off a noticeable odor for dogs. 01:21

  2. Dogs seem to be able to sense when someone's blood-sugar levels are low or about to drop dangerously. 03:11

  3. When afraid, humans sweat, produce adrenaline, and emit pheromones, all of which dogs are able to detect. 05:35