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.

SectorC: A C Compiler in 512 bytes

Brookhaven Lab's RHIC concludes 25-year run with final collisions

The F Word

I write games in C (yes, C)

Software factories and the agentic moment

Speed up responses with fast mode

Hoot: Scheme on WebAssembly

Stories from 25 Years of Software Development

OpenCiv3: Open-source, cross-platform reimagining of Civilization III

First Proof

The Waymo World Model

Al Lowe on model trains, funny deaths and working with Disney

Reinforcement Learning from Human Feedback

Vocal Guide – belt sing without killing yourself

Start all of your commands with a comma (2009)

We mourn our craft

Coding agents have replaced every framework I used

Show HN: I saw this cool navigation reveal, so I made a simple HTML+CSS version

France's homegrown open source online office suite

72M Points of Interest

The AI boom is causing shortages everywhere else

Selection Rather Than Prediction

A Fresh Look at IBM 3270 Information Display System

Unseen Footage of Atari Battlezone Arcade Cabinet Production

History and Timeline of the Proco Rat Pedal (2021)

Where did all the starships go?

Show HN: Kappal – CLI to Run Docker Compose YML on Kubernetes for Local Dev

Learning from context is harder than we thought

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

Hackers (1995) Animated Experience