Wow in the World

WeWow on the Weekend

27 min
Jan 10, 20263 months ago
Listen to Episode
Summary

This episode of We Wow on the Weekend features a Q&A segment with listener questions and a deep dive into a Wow in the World episode about dogs' extraordinary sense of smell. The show explores how dogs use their olfactory abilities to detect diseases like cancer, tell time through scent, and communicate with other dogs.

Insights
  • Dogs possess 25 times more olfactory receptors than humans and a 40 times larger olfactory cortex, enabling smell-based perception 100,000 times more sensitive than human capability
  • Trained medical detection dogs can identify cancerous cells by detecting unique chemical signatures released by mutated cells, offering potential early disease detection applications
  • Dogs use stereoscopic sniffing—smelling separately with each nostril—to pinpoint scent locations with precision, similar to how humans use stereoscopic vision for depth perception
  • Dogs can determine time of day by tracking how scents and hot air move through rooms throughout the day, explaining their ability to predict owner arrivals
  • Dog urine serves as a communication 'calling card' allowing dogs to identify age, sex, and recent diet of other dogs, rather than purely territorial marking
Trends
Canine olfactory science applications in medical diagnostics and disease detectionGrowing research into animal cognition and sensory perception at academic institutionsIntegration of animal behavior science into practical problem-solving (bed bug detection, medical screening)Educational content bridging children's entertainment with scientific literacyExploration of non-visual sensory systems as alternative perception models
Topics
Dog olfactory system and sensory capabilitiesMedical detection dogs for cancer and disease screeningCanine cognition and time perception through scentStereoscopic sniffing and spatial awareness in dogsDog communication through urine marking and scent analysisWorking dogs and job trainingBed bug detection using trained dogsOlfactory receptors and brain structure comparisonAnimal behavior research methodologiesDomestic dog evolution and behavior differences from wolves
Companies
Pierre and Marie Curie University
Conducted research on how cancerous cells release different chemicals detectable by trained medical detection dogs
Barnard College
Home to the Dog Cognition Lab where research on canine time perception and scent tracking abilities is conducted
TinkerCast
Parent company/network producing both Wow in the World and We Wow on the Weekend podcast shows
People
Alexandra Horowitz
Researcher at Dog Cognition Lab studying how dogs track scents to tell time and communicate with other dogs
Quotes
"Dogs have 25 times more olfactory receptors than we humans"
Guy Raz (character)Mid-episode
"A dog's olfactory cortex is 40 times bigger than ours"
Guy Raz (character)Mid-episode
"Dogs are able to smell separately with each nostril, so they see the world with their noses kind of like the same way we see the world with our eyes"
Mindy (character)Mid-episode
"Dogs can smell the future on the breeze"
Mindy (character)Late episode
Full Transcript
Hello, wowsers! It's me, Dennis! And before we start the show, did you hear about March Gladness? Reggie, no! Not basketball tournament stuff! March Gladness tournament stuff! Yeah, exactly! March Gladness is where I think of all the things that made me the Gladness this month, and then I put them head to head in a tournament-style bracket. Oh, so you do know what I'm talking about? Well, then as you know, the winner of my March Gladness tournament was my new haircut! Do you love it? What do you mean? Don't worry, it'll grow back! Whatever! Wowser fams, you too can fill out your very own March Gladness bracket by going to tickercast.com slash march. There, you can print your very own free March Gladness bracket, then fill it out to see what made you the Gladness this month. Put your favorite things head to head in a tournament of Gladness. One more time, that's tickercast.com slash march. Now, let's get on with the show! We wow on the weekend, we wow on the weekend, we wow on the weekend, cause this is what we do on the weekend! Talking, laughing, me and Reggie singing, laughing, and then we- Oh wait, no I said laughing twice. Ah, whatever! We wow on the weekend, we wow on the weekend, we wow on the weekend, cause this is what we do on the weekend! Hello and welcome to We Wow on the weekend! I'm your host, Dennis. That's my co-host, Reggie, the giant pigeon. This is the show where we talk and gab and chit chat and jibber jabber. Oh yeah, and we chin wag, that's for sure. Yep, that's us, just blabbering away all the live long day. Just yakking to yakking, all the time. Oh no, we never run out of stuff to say, no sirree. Me plus Reggie equals sparkling conversation, that's what I always say. Right Reggie? Right. Well that's enough chit chat. What do you say we get on to our first segment? Okay, let's do the Q&A segment. The Q&A segment. This is the segment where we answer questions that fans write to us on Spotify. The first question we have is from Ella. It says, Dennis, what do you think of Mindy and Guy going on adventures without you? And hi Reggie. Huh, what do I think of Mindy and Guy going on adventures without me? You know what, I think it's totally fine. Yeah, really, it doesn't bother me at all. Seriously, it never even crosses my mind how much fun they're having doing stuff like going to Antarctica, up into space, or back in time. Yep, I'm totally, totally good with it. Okay, you got me. I want to go on adventures too. Mindy and Guy Ross, if you're listening to this, take me on your adventures. I promise I'll be really quiet and nice and I won't complain too much or ask if we have snacks. Just take me on your adventures. Okay, this next one comes from Ryan who asks, how big is the universe? Well, Ryan, the universe is really, really, really, really, really, really, really, really, really, really big. Hope that helps. Next question. This next question comes from Elizabeth who asks, what is the best flavor of ice cream? Oh, that's easy, Elizabeth. The best flavor is chocolate. No, wait, vanilla. No, wait, mint chip. No, wait, actually it's strawberry or strawberry cheesecake or strawberry shortcake. I can't decide. Reggie, what do you think? Oh yeah, cookie dough. Maybe cookie dough is the best. No, wait, cookies and cream. I forgot about Rocky Road. Oh no, what are we going to do? Okay, how about this? I would take every flavor of ice cream and melt them and mix them into ice cream soup. Because Reggie, soup is the best flavor of ice cream. Next question. Okay, this last question comes from Hailey and Ben. It says, dear Dennis. Woohoo, so formal. I love it. Dear Dennis, where do you live and do you live with Reggie? Well, Hailey and Ben, I live with my mother and Reggie lives in Mindy's Gingerbread Mansion. And Reggie comes over here so we can record the podcast. But Reggie never invites me over to Mindy's, so actually Reggie, why don't you ever invite me over? What? I am not a bad guest. Guest? I refuse to leave because I'm having so much fun and because I want to have sleepovers. What do you mean you can never sleep when I sleep over? Reggie, I have to repeatedly yell sleepover until the sun comes up so you know that it's a sleepover. What? And you hate it when I turn all the ice cream into ice cream soup? Everybody knows it's the best flavor. Oh, whatever. Thanks for all your questions, listeners. Keep them coming. If you write me a question on Apple Podcasts or Spotify, I just might read it on WeWow on the weekend. Okay, now it's time for the next segment. Inside TinkerCast Studios. Ahem. Inside TinkerCast Studios. This is the part where we revisit an episode of one of my favorite TinkerCast shows. And today, we're listening to Wow in the World Season 2, Episode 8, called A Dog's Nose Always Knows. In this episode, Mindy is dog sitting her Aunt Mojo's dog, Niels. Wait, Niels is Aunt Mojo's dog? Well then who's Beardsley? Ah, right, that's Guy Razz's friend's dog. Hey Reggie, do you think I should get a dog? Yeah, you're right. I should get two dogs. I'd name them Skittles and something to do with snooping. Um, Snoop Dog. Oh, that's already someone's name. Then how about Scout? Skittles and Scout. So cute. Oh yeah, we gotta play the episode. Okay, here we go. And, wait. We Wow will be right back. Grownups, this message is for you. That's it, now back to the show. Wow in the World! Oh my, whoa, no, no, no, no, oh no, easy, doesn't eat, sit. Oh, watch out for my collection of... My collection of antique glass eyeballs. Man! Well, good thing you're so adorable. Yes you are, yes you are. Who's an adorable little bulldozer of destruction? You are, yes you are. Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam Zam What are you? Much better this sure is one big dog you have here, Mindy. I know right? He's a great day. Wow, so not just a big dog, but the biggest dog yep Biggest dog breed in the whole world. By the way, what's the big guy's name? Oh, his name is Neals. Oh, I get it You get what? Neals like he Neals like like a dog No, Neals isn't Neals boar Neals boar Neals boar Neals boar guy Ross. He's the scientist who basically Invented the field of quantum physics. Oh Yeah, Neals boar. Can you win the Nobel Prize in 1922 sure did and you want to know another fun fact about him? Hmm what he was Danish? Oh? That's starting to make sense. He was Danish his name was Neals He was a great Scientist and Danish people are called Danes and so Neals is a great day That is very clever your old and mojo, right? Yeah, so what were you doing that got all Neals so riled up Oh, so he was helping me to solve a mystery a mystery yep In fact, it's what he does for his day job. He solves mysteries Mindy, are you sure you're not just confusing him with Scooby-Doo? No, I'm not confusing him with Scooby-Doo guy Ross, but like Scooby-Doo Neals is a great day and both Scooby and Neals are working dogs Working dogs yep a working dog is a dog. That's not just kept for a pet But also trained to perform a certain job Huh, and don't worry guy Ross. I already looked over his resume and he is more than qualified to be on the case So Neals this job here requires you to perform a lot of different tasks You think you'd be able to handle a workload like that Nice confidence. I like that now. What would you say is your biggest weakness? professionally speaking Well, I appreciate the honesty now finally it says here that you've had three years of improv Experience could you um elaborate on that a little for me? See guy Ross dogs like Neals have been helping us humans out for centuries It's part of the reason why we get along so well isn't that right pal? And you know what I'm pretty sure I have a book on this in the library come on guy Ross follow me Of course you can come to All right, here we are Mindy I had no idea you had this whole library back here Yeah, it used to be Reggie's taekwondo dojo, but ever since he moved to the time machine I've been slowly filling it up with all of my books and brains and bubble gum brains Bubble gum. Oh, yeah, so when I built this gingerbread mansion I decided to organize all of my stuff in alphabetical order by room only I never got past the bees The rest of the house is a disaster Obviously any who now what was I looking for? Let's see here The weird and wacky world of worms. No, that's not it Working weasels of Wisconsin. No. Oh, here we are working dogs of the world ah Now I just need to find this one chapter Okay, guy Ross it says right here that dogs have been working alongside humans for thousands of years with evidence of them being used on farms in ancient Viking times And you know now that I think about it Mindy I've seen working dogs used for lots of different jobs from security at airports to finding people that are lost in the forest to even detecting diseases like cancer Hold the phone guy Ross detecting cancer well Mindy it turns out that some dogs are so good at smelling things that some scientists are using their incredible sense of smell to detect diseases like Cancer and even diabetes Bunker balls they must be packing one impressive snows if they're able to detect something like that Especially because to us humans those diseases don't smell like anything and if dogs can smell them early enough It might be easier for doctors to start to heal people who might have those diseases So how do dogs smell something like that well Mindy when we look at the numbers It's not really that surprising because dogs have 25 times more olfactory receptors than we humans olfactory receptors aren't those those things in our nose that help us to detect smells Exactly, and you can't see them, but because of these extra receptors dogs have a smelling ability That's about a hundred thousand times greater than our own That's bonker balls now Mindy we humans were very Visual creatures and we learn about the world mainly through what we see through our eyes and Because of this the human brain is largely taken up by the visual cortex Visual cortex being the part of our brain that figures out what we're seeing with our eyes Exactly, and we also have a part of the brain called the olfactory cortex Which is responsible for analyzing what we smell okay, so how does a dog's olfactory cortex compared to ours as humans? a dog's olfactory cortex is 40 times bigger than ours So let me get this straight guy Ross Not only are these super sniffing canines able to detect more smells than us humans But because of their overblown olfactory cortex, they're able to figure out what that smell is better than us too That's right. Okay, so Neil's here may have a pretty great sense of smell But how are these medical detection dogs able to sniff out diseases like cancer? Well researchers from the Pierre and Marie Curie University in Paris, France have suggested that cancerous cells Which are the cells that mutate or change to become cancer? Well those cells release different chemicals than healthy cells And so these dogs are able to smell the chemicals that these cancerous cells are giving off They can basically smell cancer. That's right. Remember Mindy these dog noses are highly sensitive Wow, it's like a real-life superpower or something It really is Mindy and some studies have confirmed that trained medical detection dogs can even detect Skin cancers by just sniffing the skin or cancer in human lungs by sniffing human breasts Wow that is really impressive guy Ross I had no idea the dogs were using their super sniffing abilities in so many important ways I mean, I always just thought they were using their noses to sniff each other's food So by the way, what exactly is Neil's here helping you out with? You said he was a detection dog too. Oh, yeah the mystery he was helping me solve. Okay, so um well Bed bugs. Bed bugs? Yep, it's a specialty I've just been etching all over the place for the last couple of weeks and afraid there might be an outbreak of them So Neil's here is able to detect where the bugs are in your house the the same way those medical detection dogs are able to Detect certain diseases. Oh, yeah, but it goes even deeper than that So not only is Neil's able to detect the smell of bed bugs in the house But he's able to pinpoint the exact location Where the smell is coming from and he does this using a very special ability called stereoscopic sniffing stereoscopic sniffing is that like stereoscopic vision? Well sort of so stereoscopic vision is what we humans use to predict depth That's right. And the way our vision works is each of our eyes sees the same thing in a slightly different way So for example, I'm looking at Neil's here, right? And one of my eyes is seeing him and my other eye is also seeing him And those two images combine in my brain to create one single image of Neil's Otherwise I'd be seeing two of him all the time And that's how our brain knows how far away we are from the things we see stereoscopic vision. Wow, that's so cool Hey, now I want to imagine what my life would be like without stereoscopic vision. Here goes easy Mindy if you keep crossing your eyes you're gonna lose your balance and fall Do you need a hand? No, I'm okay My eyes just got all googly when I tried using my stereoscopic vision to look at my nose up close Anyhow back to stereoscopic sniffing Gairaz, did you know that dogs are able to smell separately with each nostril? So they see the world with their noses kind of like the same way we see the world with our eyes? Exacteritos Gairaz Huh, I wonder what this room smells like to Neil's. Well, I think it would probably smell like 230 in the afternoon Oh, sorry 234 234, what are you talking about Mindy? Oh, well that's sort of the other reason I'm dog sitting for Neil's here See my wall clock finally ran out of juice I did notice that it had stopped ticking Yeah, and I haven't had any time to get down to the store to get some more oj for it So what does that have to do with looking after your aunt Mojo's dog? Well without a clock to tell me what time it is I'm having to rely on Neil's which by the way, did I tell you that dogs can tell time through smell too? Okay Mindy, I know I can be pretty gullible like like remember the time you told me that planting Cheerios can grow a donut tree. Well, that wasn't completely untrue. Uh, yeah, I'm pretty sure it was Okay, Gairaz. Here's how you grow a donut first you take the Cheerio and you place it in the ground Cover it up with a little bit of dirt Wrinkling of water and let the sun shine in Wow Are you sure this is gonna work Mindy? Of course, I'm not sure Gairaz But if I'm right, we'll have grown fresh donuts just in time for breakfast tomorrow Yeah, I'm pretty sure that wasn't true Mindy. Well this time I'm telling the truth Gairaz According to professor Alexandra Horowitz from the dog cognition lab at Barnard College in New York Dogs can track and analyze how scents in a room change throughout the day And this allows them to know what time of day it is Exactly Doritos According to professor Horowitz throughout the day hot air will rise Usually along the walls of a room and then travel to the center of the room and then drop And so dogs are able to track the smells and all of that air You got it and by tracking those smells dogs are able to tell whether it's morning afternoon or night Huh? Well that might also explain why a lot of dogs are able to predict when their owners are gonna come home Oh, yeah, since I've been dog sitting kneels. He's always waiting for me at the door when I come back for my trombone lessons Oh Hey buddy, I missed you too. Now. Let me just mooch that little doggy face of yours Say Mindy, it looks like kneels here might be getting a bit worked up. Maybe we should take him for a walk Okay, but gairaz. What are you planning to do a second fermentation on your kombucha this afternoon? Well, yeah, but you know what Mindy? I think I can wait Yeah, I think it's probably a good idea for both kneels and I to get our yas out Man, I just finished rebaking that gingerbread door All right gairaz come on. We should probably go catch up after you Mindy Ah what a beautiful day for a walk outside to chase the dog. I'm supposed to be taking care of Sure is Mindy, though. I don't like the look of those clouds over there. Do you think we should have brought an umbrella? We'll be fine gairaz. Okay. If you're sure Hey kneels kneels where'd you go little buddy? There you are you little scam can't go running off like that No, I thought you were pulling my leg Mindy, but kneels was completely right It is just after 2 30 in the afternoon I told you he could smell the time of day but gairaz if you think that's impressive you should know that dogs can also smell The future the future. Yep. They can smell it on the breeze dogs can smell the future On the breeze sure can remember how I told you that dogs can see the world with their nose The same way that we see the world with our eyes. Yeah Well, according to professor alexandra horowitz The sense that dogs use to build their picture of the world are often carried on breezes So what's happening around that corner over there might have already wafted over this way Meaning that kneels knows what's around the bend before we've even gotten there Wow, is that why dogs are often said to be able to detect oncoming storms? They can actually smell it coming You know what gairaz so when a storm is coming in the ground kind of loosens up a little bit throwing all kinds of smells Into the air these smells that evaporate into the air and the dogs can pick up on them as they travel on the wind Wow Oh, what is it boy? What's he saying Mindy? Wait? He's saying Hey, where is he going off to now? Looks like he's going up to that fire hydrant and Come on buddy. We're almost home. Couldn't you hold it? Well, I guess he's just marking his territory Actually gairaz that might not be true. Why so here's the thing Even though wolves and other wild dogs Dolphinately do peon stuff to mark their territory Some scientists think that domestic dogs or the kind of dogs that live with us peon things for a very different reason And what's that? Well that same researcher from the dog cognition lab professor horowitz She describes it as a type of calling card. You mean like putting an ad up on a bulletin board? Exactly So here's the deal gairaz using their super sonic sniffing noses Dogs are actually able to tell a lot about each other and they do this by sniffing each other's pee Not making this up. They're able to tell how old the other dog is Whether it's a male dog or a female dog. They're even able to tell what it had to eat earlier that day. It's crazy Let's see here golden retriever two years old 14 and dog years name is frank dinner was steak tar tar fancy I better go visit frank Ah indy i told you we should have brought an umbrella hurry up gairaz get inside before you get all wet coming indy I just remembered i've got all my laundry hanging outside on the clothesline. I gotta go get it before it rains Run run run run run run run run run run run Oh What what what what what what what what Back inside Man that was a closed one. Look at it outside. Mindy. What on earth is that on your laundry pile? What these? Uh Oh, these are my new pajama overalls grandma g-force knitted them for me last week out of 100 100% What sleeping them every night last week you say last week I say Mindy, I don't think you have bed bugs. You mean kneels bring your nose over here Why have bed bugs? No, I think you've been itchy all this week because of these new pajamas Oh 100 Yeah, cool that explains why kneels didn't find any bed bugs. Hey kneels. What's the time right now? Yep, I agree What did he say? He said it's time for you to get a new pair of pajamas. Well, shh. I can't argue with that kneels really knows I'm pointing to my nose. Yeah. Yeah. Yeah, I get it. I get it kneels really knows His stuff Wow, that was so cool I can't believe dogs can basically smell the future. We should go find a canine fortune teller I have so many questions like will we wow on the weekend ever win an oscar Or will I ever get the rarest nokemon card for fellasard or will guy in mindy rsvp to my annual Bring your own burgers and hot dogs and coleslaw and desserts barbecue Oh, runji, what do you mean? No, you don't know that you don't even have a nose Oh, whatever. Let's just wrap up the show Thanks to all you listeners out there for tuning in to we wow on the weekend If you have a question for me call and leave me a message at 1-888-7 wow wow That's 1-888-7 wow wow I just might answer your question on we wow on the weekend Okay, should we do the goodbye song great That's the end of the show. I need to go and find a psychic st. Bernard But I'll do another show tomorrow But for now, that's the end of the show