Chimpanzees 'catch' contagious yawns from friends

[Pappa]

http://news.bbc.co.uk/earth/hi/earth_ne ... 450234.stm (Video available)

Yawning is contagious not just for humans, but for our primate relatives, the chimpanzees, according to a study.

Researchers at Emory University in Atlanta, US, have used footage of yawning chimps to test the phenomenon in a group of the animals.

The chimps yawned more after watching the videos. And they were affected more by yawns of their group members than by those of unfamiliar chimps.

The findings are reported in the journal PLoS One.

Dr Matthew Campbell and Dr Frans de Waal showed the footage to 23 adult chimpanzees, which had been raised in two separate groups.

Each animal viewed several nine-second video clips of other chimpanzees either yawning or doing something else.

They yawned 50% more frequently in response to seeing members of their group yawn compared with seeing others yawn.

The findings suggest that contagious yawning is a good empirical measure of empathy.

The team says that it was this social connection rather than just how much attention the chimps paid to the videos that influenced the "contagiousness" of the yawns.

The researchers wrote in the journal: "The chimpanzees actually watched the videos of unfamiliar individuals more than the videos of familiar individuals.

"They [paid more attention] to the unfamiliar yawns, but yawned more to the familiar yawns," they explained.

"Given that chimpanzees exhibit both altruism and extreme violence toward others, studying how and when empathy is engaged may tell us about how humans switch between these two extremes as well.

[.Morticia.]

hands up who has made their cat yawn

[egbert]

hands up who has made their cat yawn

Yup. And vice versa. Don't see how this news is some breakthrough discovery?

[Lozzer]

hands up who has made their cat yawn

LMAO, I read this, looked at my dog and experimented with a 'mock' yawn. SHE DID IT TOO

<3SCIENCE

[Geoff]

hands up who has made their cat yawn

I can make my dog sneeze...does that count?

[Pappa]

hands up who has made their cat yawn

I can make my dog sneeze...does that count?

I can give my dog an orgasm.... um... oh wait.

[cowiz]

I ain't no monkey

[Millefleur]

I've been able to make Bella yawn for ages Someone told me when she was a pup that yawning and licking your lips shows you're relaxed and comfortable - this was in relation to firework noise - and is a good way to show your dog there's no threat by exaggerating the signals that show you're at ease.

[Bella Fortuna]

I've been able to make Bella yawn for ages

Au contraire, madam!

[Xamonas Chegwé]

I've been able to make Bella yawn for ages

Au contraire, madam!

Existentialist1844 on the other hand...

[FBM]

Damn, that felt good.