Show Notes
Have you ever sniffed your dog's paws and noticed they smell kind of like Doritos? Not because your dog is secretly snacking on chips... because of something much more microscopic.
In this episode of Why Though?, Dr Matt Agnew investigates the tiny living world on your dog's paws. What are bacteria and yeast? Why are dog paws such a perfect home for microbes? And what are they actually doing in there that smells exactly like corn chips?
What you'll learn: Dog paws smell like Doritos because of tiny living things called bacteria and yeast Dog paws are a perfect microbe home... warm, slightly moist, and picking up dirt and crumbs on every walk Two bacteria called Proteus and Pseudomonas are usually responsible for that cheesy corn chip smell The scientific word for this tiny community is the microbiome... and your dog has one living right on their paws Your own body has trillions of bacteria... even more than human cells The Dorito smell is usually totally normal... but red, itchy or sore paws mean a trip to the vet
Key Science Ideas: Bacteria: Single-celled organisms found almost everywhere, including on your dog's paws Yeast: A type of fungus... the same kind that helps bread rise Microbiome: The community of tiny living things on and inside a body Microbes: The scientific word for tiny living things like bacteria and yeast Pseudomonas and Proteus: The two bacteria most responsible for that corn chip smell
Fun Experiment: The Microbe Hotel Take a small piece of bread and leave it in a warm, slightly damp spot for a few days. Watch what grows on it. That fuzzy stuff is mould... a close relative of the yeast living on your dog's paws. Warmth plus moisture plus a tiny bit of food equals microbes moving in. Sound familiar? That's exactly the same recipe as a dog's paw. Once you've had a good look, wrap it up carefully and pop it in the bin... don't open it indoors once the mould gets going.
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