What are the key takeaways from this Science Vs episode?

Key insights include: **Dog olfaction mechanics:** Dogs split inhaled air into two streams—one for breathing, one dedicated to smell—creating continuous scent perception unlike humans' strobing experience that blacks out with each exhale, enabling superior tracking abilities.; **Human echolocation capability:** Blind individuals like Daniel Kish navigate by making sharp tongue clicks and interpreting echoes to detect houses, cars, fences, and overhead branches, using the same distance-timing principles bats employ with ultrasonic calls.; **Bird ultraviolet vision expansion:** Birds possess four color-sensing cone cells versus humans' three, enabling perception of approximately 100 times more colors than humans see, revealing hidden patterns on flowers and feathers invisible to human eyes.

What did Ed Yong discuss on Science Vs?

Pulitzer Prize-winning science writer Ed Yong explains how animals perceive the world through senses humans cannot access, from dogs' continuous smell streams to birds seeing ultraviolet colors to whales communicating across ocean basins. Key topics include: **Dog olfaction mechanics:** Dogs split inhaled air into two streams—one for breathing, one dedicated to smell—creating continuous scent perception unlike humans' strobing experience that blacks out with each exhale, enabling superior tracking abilities.; **Human echolocation capability:** Blind individuals like Daniel Kish navigate by making sharp tongue clicks and interpreting echoes to detect houses, cars, fences, and overhead branches, using the same distance-timing principles bats employ with ultrasonic calls..

How long is this episode of Science Vs?

This episode is 48 minutes long. SignalCast provides an AI-generated summary so you can get the key insights in about 3 minutes.

Science Vs

How to Smell like a Dog, with Ed Yong

September 25, 2025

48 min episode · 2 min read

Ed Yong

Episode

48 min

Read time

2 min

Topics

Product & Tech Trends, Philosophy & Wisdom, Science & Discovery

AI-Generated Summary

Published Dec 25, 2025

Key Takeaways

✓Dog olfaction mechanics: Dogs split inhaled air into two streams—one for breathing, one dedicated to smell—creating continuous scent perception unlike humans' strobing experience that blacks out with each exhale, enabling superior tracking abilities.
✓Human echolocation capability: Blind individuals like Daniel Kish navigate by making sharp tongue clicks and interpreting echoes to detect houses, cars, fences, and overhead branches, using the same distance-timing principles bats employ with ultrasonic calls.
✓Bird ultraviolet vision expansion: Birds possess four color-sensing cone cells versus humans' three, enabling perception of approximately 100 times more colors than humans see, revealing hidden patterns on flowers and feathers invisible to human eyes.
✓Sensory pollution disruption: Plastics in oceans emit dimethyl sulfide (DMS), the chemical seabirds like albatrosses use to locate food-rich waters, causing birds to ingest plastic debris by following false feeding signals in polluted areas.

What It Covers

Pulitzer Prize-winning science writer Ed Yong explains how animals perceive the world through senses humans cannot access, from dogs' continuous smell streams to birds seeing ultraviolet colors to whales communicating across ocean basins.

Key Questions Answered

•Dog olfaction mechanics: Dogs split inhaled air into two streams—one for breathing, one dedicated to smell—creating continuous scent perception unlike humans' strobing experience that blacks out with each exhale, enabling superior tracking abilities.
•Human echolocation capability: Blind individuals like Daniel Kish navigate by making sharp tongue clicks and interpreting echoes to detect houses, cars, fences, and overhead branches, using the same distance-timing principles bats employ with ultrasonic calls.
•Bird ultraviolet vision expansion: Birds possess four color-sensing cone cells versus humans' three, enabling perception of approximately 100 times more colors than humans see, revealing hidden patterns on flowers and feathers invisible to human eyes.
•Sensory pollution disruption: Plastics in oceans emit dimethyl sulfide (DMS), the chemical seabirds like albatrosses use to locate food-rich waters, causing birds to ingest plastic debris by following false feeding signals in polluted areas.

Notable Moment

Ed Yong got down on all fours, blindfolded, and successfully followed a chocolate-scented string using only his nose by swinging his head side-to-side like a dog, though he hyperventilated from constant sniffing while a dog completed the task effortlessly.

Know someone who'd find this useful?

Episode Transcript

I did get hit by a mantis shrimp, which, has the most powerful punch in nature. This was a very, very small mantis shrimp, and it still hurt. Science chats with our favorite nerds. Yeah. Hi. I'm Wendy Zuckerman, and you're listening to Science Versus. Today on the show, the amazing superpowers of animals. Some animals can see things that we can't see. They can hear things that we can't hear, touch things that we will never feel. And so today on the show, we are diving into their world to talk about the groundbreaking science of how animals perceive. And to go on this journey, we'll be chatting to Ed Yong. He's a Pulitzer prize winning science writer, and we'll be talking about his book, An Immense World, How Animal Sensors Reveal the Hidden Realms Around Us. And I think you're gonna love this chat. You are gonna look at your dog in a totally different light by the end of this chat. You're gonna appreciate how eyes have literally painted the world, and you may even feel sorry for the humble cockroach. If you are listening to this on Spotify, you can also be watching it because it's on video. Hello. My interview with Ed Young is coming up just after the break. This episode is brought to you by ServiceNow. AI is only as powerful as a platform it's built into. That's why it's no surprise that more than 85% of the Fortune 500 use the ServiceNow AI platform. While other platforms duct tape tools together, ServiceNow seamlessly unifies people, data, workflows, and AI connecting every corner of your business. And with AI agents working together autonomously, anyone in any department can focus on the work that matters most. Learn how ServiceNow puts AI to work for people at servicenow.com. This episode is brought to you by Ford BlueCruise. There's something to be said about long drives, the playlists, the games, the snacks, the goofy stuff we do for our entertainment. Ford BlueCruise makes these moments even better. With hands free highway driving, it takes one thing off your plate so you can fully enjoy the drive and the company and every mile of the journey. It makes me think of this trip I took with my best friend years and years ago. We were in the car for seventeen hours each way across a lot of desert, and we decided to keep a notebook, kind of a log for the entire drive. Every silly inside joke, every vanity license plate that made us laugh, every single weird place we stopped along the highway, like the haunted wax museum with a lot of weird and creepy artifacts. Everything, it all went into the notebook. And it ended up being such a cool thing because that notebook became this memento, this souvenir of that very, very long, very, very fun road trip. And I still have it. Make more memories with BlueCruise, Consumer Reports' top rated active driving …

Get the full transcript (7,839 words) + summary by email — free

One-time email with the complete transcript and AI summary of this episode. No account needed.

One email, no spam. We’ll also show you what SignalCast does.

Browse all Science Vs transcripts →