Chimpanzees yawn when observing an android yawn

https://www.nature.com/articles/s41598-025-98639-z

50•PaulHoule•7mo ago

Comments

seanalltogether•7mo ago

And like a damn chimp I just yawned after reading this headline.

thevinchi•7mo ago

I came here to say the same damn thing.

Findecanor•7mo ago

Me too. I was already sleepy, so on the verge of yawning already though. Coincidence or did the headline trigger it?

airstrike•7mo ago

Sounds like we need to test if people yawn after imagining someone else yawning

froddd•7mo ago

I can confirm. Sample of one, mind.

kgwgk•7mo ago

Of course we do. What I wonder is if there is any (inverse) correlation with aphantasia.

thih9•7mo ago

Science is notoriously late to discover what pet owners have known for centuries.

https://www.youtube.com/watch?v=joROEZQz178

kgwgk•7mo ago

Which one is the « catoid » there?

dghughes•7mo ago

I did the same after imagining it. Plus I have a half eaten banana in front of me. My life is an illusion!

nomilk•7mo ago

Why are yawns contagious in the first place? (i.e. human to human)

4gotunameagain•7mo ago

Many different proposed causes listed in the wikipedia article.

JadeNB•7mo ago

Also a brief survey in the linked Scientific Reports article.

smokel•7mo ago

https://en.wikipedia.org/wiki/Yawn

Not mentioned in the Wikipedia article, but in a referenced article [2]: "Another puzzling phenomenon is that some male animals, men included, yawn in association with penile erection"

[2] https://www.nbcnews.com/id/wbna3076713

willis936•7mo ago

Not an answer but an expansion on the question: yawns are contagious among mammals. If you watch your cat yawn you're more likely to yawn and vice versa.

safeimp•7mo ago

Not only mammals (hence, this post).

Read about it, mammals will yawn when other non-mammals yawn.

lupusreal•7mo ago

Well, the android is roughly mimicking a mammal. But more to that point, I've seen snakes yawn, and I then yawned. Reptiles generally seem to yawn and I'd bet they yawn when they see mammals yawn too.

dinkblam•7mo ago

> I've seen snakes yawn

if a see a snake (yawning or otherwise) i'll definitely not yawn.

puking, screaming or running would be more likely.

lupusreal•7mo ago

Aww, snakes are cute though. You should think about spending some time around some docile snakes to challenge your aversion. Even through a glass tank wall, so you can feel rationally safe.

e40•7mo ago

I always heard it was synchronization of sleep cycles.

dboreham•7mo ago

Guess: one of the emergent properties of LLM-like systems is mimicry.

brulard•7mo ago

I read that sociopaths are immune from this

david422•7mo ago

Mythbusters did an episode on this https://www.discovery.com/shows/mythbusters/episodes/is-yawn...

IIRC, it wasn't that contagious.

JR1427•7mo ago

> IIRC, it wasn't that contagious.

Or, restated, they confirmed it was contagious.

david422•7mo ago

No. Plausible, but statistically insignificant for a definitive conclusion. https://mythresults.com/episode28

blackoil•7mo ago

I remember yawn as a result of lack of oxygen and need for a deep breath. Maybe it was some reaction among animals where they breath even if not feeling lack of oxygen.

yard2010•7mo ago

I would say "mirror neurons".

Also, primates are naturally selected to act mutually. Whoever didn't do so lost the tribe and died.

That's just high me thinking though.

serial_dev•7mo ago

I was just reading the headline and started yawning.

dgfitz•7mo ago

I don’t think they’re contagious. When everybody is bored and tired in the same room, they yawn.

Occam’s razor.

SpectraLeper•7mo ago

This presentation from BAHFest has always stuck with me as the "real" explanation: https://youtu.be/yh0XUZjRhO8?si=q9WNbCkEeMC-fuPp

nadermx•7mo ago

This was glorious.

ninetyninenine•7mo ago

It even is contagious through text. I read your comment and then literally yawned.

evulhotdog•7mo ago

I yawned because I read this comment.

sva_•7mo ago

Those images of that android in the PDF is the stuff that nightmares are made off

tarbyqualia•7mo ago

I thought it looked unnervingly realistic. That is, if you ignore the weird mouth curvature.

meindnoch•7mo ago

And what if they observe an iOS yawn?

divan•7mo ago

They become liquid and transparent

theginger•7mo ago

They get locked into a caged ecosystem

JadeNB•7mo ago

I'm not sure why 'Android' got auto-capitalized, but it's about a robot simulating yawning, not a phone.

tomhow•7mo ago

I've fixed it. Our auto-capitalizing bot didn't know the word could also be an improper noun.

Jorge1o1•7mo ago

Monkey see, monkey do?

hoppp•7mo ago

I yawned from reading the title, so Im not surprised.

dghughes•7mo ago

I yawned after reading the title and imagining a chimp yawn at a robot.

nopelynopington•7mo ago

Used to play a game when we were kids where one of us would start faking a yawn - stretching, contorting our mouths between words, breathing in as if trying to fight a yawn, trying to make the other person yawn before they realise.

overstay8930•7mo ago

My cat yawns after watching me yawn, I assumed this was a universal thing.

Anthropic: Latest Claude model finds more than 500 vulnerabilities

Brooklyn cemetery plans human composting option, stirring interest and debate

Why the 'Strivers' Are Right

Brain Dumps as a Literary Form

Agentic Coding and the Problem of Oracles

Malicious packages for dYdX cryptocurrency exchange empties user wallets

Show HN: I built a <400ms latency voice agent that runs on a 4gb vram GTX 1650"

Penisgate erupts at Olympics; scandal exposes risks of bulking your bulge

Arcan Explained: A browser for different webs

What did we learn from the AI Village in 2025?

An open replacement for the IBM 3174 Establishment Controller

The P in PGP isn't for pain: encrypting emails in the browser

Show HN: Mirror Parliament where users vote on top of politicians and draft laws

Ask HN: Opus 4.6 ignoring instructions, how to use 4.5 in Claude Code instead?

We Mourn Our Craft

Jim Fan calls pixels the ultimate motor controller

Exploring a Modern SMTPE 2110 Broadcast Truck with My Dad

AI UX Playground: Real-world examples of AI interaction design

The Field Guide to Design Futures

The Other Leverage in Software and AI

AUR malware scanner written in Rust

Free FFmpeg API [video]

Are AI agents ready for the workplace? A new benchmark raises doubts

Show HN: AI Watermark and Stego Scanner

Clarity vs. complexity: the invisible work of subtraction

Solid-State Freezer Needs No Refrigerants

Ask HN: Will LLMs/AI Decrease Human Intelligence and Make Expertise a Commodity?

From Zero to Hero: A Brief Introduction to Spring Boot

NSA detected phone call between foreign intelligence and person close to Trump

How to Fake a Robotics Result