Gay and straight men may have different facial shapes, new study suggests

Researchers have found that homosexual and heterosexual men have distinguishable facial shapes

A new study analysing the facial differences between homosexual and heterosexual men has found "significant morphological differences".

A study conducted by researchers from the Center for Theoretical Study at Charles University in Prague and The Academy of Sciences of the Czech Republic examined the possible differences in facial shape between homosexual and heterosexual individuals and found "significant" shape differences in faces of heterosexual and homosexual men.

Their results found that homosexual men were rated as more stereotypically 'masculine' than heterosexual men, which they said undermined stereotypical notions of gay men as more feminine looking.

In the first part of their study, researchers looked at the morphological differences between gay and straight men.

In the second part, the team looked at whether an individual's sexual orientation can be correctly determined solely based on facial features. 

The team, led by Jarka Valentova, recruited 40 gay and 40 straight white, Czech men for the first study and 33 gay and 33 straight men aged in their early 20s for the second.

Eighty pictures were taken of the men in the first study using a Canon camera. Over 11,000 coordinates were established to allow for comparison using geometric morphometrics.

Homosexual men showed relatively wider and shorter faces, smaller and shorter noses, and rather massive and more rounded jaws, "resulting in a mosaic of both feminine and masculine features", the authors of the study found.

Forty female and 40 male students from Charles University were then asked to rate the sexual orientation of the 66 participants in the second study by ranking their masculinity or femininity on a scale on one to seven. One indicated very masculine and seven indicated very feminine.

The face shapes of homosexual men were deemed more masculine on this scale, and raters were unable to correctly identify each participants sexual orientation just from looking at their face. The authors argue this provides evidence that "sexual orientation judgment based on stereotyped gender specific traits leads to frequent misjudgment".

Speaking to the Huffington Post, Valentova stressed: “It's necessary to point out to possible misunderstandings of our results. The fact that we have found some significant morphological differences between homosexual and heterosexual men does not mean that any of the groups is easily recognizable on the street (and our Study 2 actually shows that it's not that easy to guess anyone's sexual orientation without knowing it), or that anything like that should be done (like pointing on people with our illustrations and guessing who is who).”

She added that the study would need be replicated within different ethnic groups and in bigger sample sizes in order to strengthen its validity.

The authors concluded: "Our results showed that differences in facial morphology of homosexual and heterosexual men do not simply mirror variation in femininity, and the stereotypic association of feminine looking men as homosexual may confound judgments of sexual orientation."

Start your day with The Independent, sign up for daily news emails
Arts and Entertainment
The Doctor and Clara have their first real heart to heart since he regenerated in 'Deep Breath'
TV
Life and Style
Apple showed no sign of losing its talent for product launches with the new, slightly larger iPhone 6 making headlines
techSecurity breaches and overhyped start-ups dominated a year in which very little changed (save the size of your phone)
Arts and Entertainment
Jamie Oliver
filmTV chef Jamie Oliver turned down role in The Hobbit
News
The official police photograph of Dustin Diamond taken after he was arrested in Wisconsin
peopleDownfall of the TV star charged with bar stabbing
PROMOTED VIDEO
Arts and Entertainment
Jeremy Clarkson, left, and Richard Hammond upset the locals in South America
tvReview: Top Gear team flee Patagonia as Christmas special reaches its climax in the style of Butch and Sundance
News
people
Sport
Ashley Barnes of Burnley scores their second goal
footballMan City vs Burnley match report
Arts and Entertainment
Peter Mayhew as Chewbacca alongside Harrison Ford's Han Solo in 'Star Wars'
film
News
i100
Arts and Entertainment
Man of action: Christian Bale stars in Exodus: Gods and Kings
film
ebooks
ebooksA year of political gossip, levity and intrigue from the sharpest pen in Westminster
Arts and Entertainment
Tracy Emin's 1998 piece 'My Bed' on display at Christie's
artOne expert claims she did not
Arts and Entertainment
Catherine (Sarah Lancashire) in Happy Valley ((C) Red Productions/Ben Blackall)
TV
News
Hackers revealed Oscar-winning actress Lawrence was paid less than her male co-stars in American Hustle
people
Arts and Entertainment
Clueless? Locked-door mysteries are the ultimate manifestation of the cerebral detective story
booksAs a new collection of the genre’s best is published, its editor explains the rules of engagement
Sport
Robin van Persie is blocked by Hugo Lloris
footballTottenham vs Manchester United match report
Latest stories from i100
Have you tried new the Independent Digital Edition apps?
Independent Dating
and  

By clicking 'Search' you
are agreeing to our
Terms of Use.

iJobs Job Widget
iJobs General

Recruitment Genius: Business Manager

£32000 - £40000 per annum: Recruitment Genius: A Business Manager is required ...

Recruitment Genius: Operations Manager

£45000 - £55000 per annum: Recruitment Genius: This is an exciting opportunity...

Recruitment Genius: Panel & Cabinet Wireman

£20000 per annum: Recruitment Genius: Panel Wireman required for small electro...

Recruitment Genius: Electronics Test Engineer

£25000 - £27000 per annum: Recruitment Genius: An SME based in East Cheshire, ...

Day In a Page

A timely reminder of the bloody anniversary we all forgot

A timely reminder of the bloody anniversary we all forgot

Who remembers that this week we enter the 150th anniversary year of the end of the American Civil War, asks Robert Fisk
Homeless Veterans appeal: Former soldiers pay their respects to a friend who also served

Homeless Veterans appeal

Former soldiers pay their respects to a friend who also served
Downfall of Dustin 'Screech' Diamond, the 'Saved By The Bell' star charged with bar stabbing

Scarred by the bell

The downfall of the TV star charged with bar stabbing
Why 2014 was a year of technological let-downs

Why 2014 was a year of technological let-downs

Security breaches and overhyped start-ups dominated a year in which very little changed (save the size of your phone)
Cuba's golf revolution: But will the revolutionary nation take 'bourgeois' game to its heart?

Will revolutionary Cuba take 'bourgeois' golf to its heart?

Fidel Castro ridiculed the game – but now investment in leisure resort projects is welcome
The Locked Room Mysteries: As a new collection of the genre’s best is published, its editor Otto Penzler explains the rules of engagement

The Locked Room Mysteries

As a new collection of the genre’s best is published, its editor explains the rules of engagement
Amy Adams on playing painter Margaret Keane in Tim Burton's Big Eyes

How I made myself Keane

Amy Adams hadn’t wanted to take the role of artist Margaret Keane, because she’d had enough of playing victims. But then she had a daughter, and saw the painter in a new light
Ed Richards: Parting view of Ofcom chief. . . we hate jokes on the disabled

Parting view of Ofcom chief... we hate jokes on the disabled

Bad language once got TV viewers irate, inciting calls to broadcasting switchboards. But now there is a worse offender, says retiring head of the media watchdog, Ed Richards
A look back at fashion in 2014: Wear in review

Wear in review

A look back at fashion in 2014
Ian Herbert: My 10 hopes for sport in 2015. Might just one of them happen?

Ian Herbert: My 10 hopes for sport in 2015

Might just one of them happen?
War with Isis: The West needs more than a White Knight

The West needs more than a White Knight

Despite billions spent on weapons, the US has not been able to counter Isis's gruesome tactics, says Patrick Cockburn
Return to Helmand: Private Davey Graham recalls the day he was shot by the Taliban

'The day I was shot by the Taliban'

Private Davey Graham was shot five times during an ambush in 2007 - it was the first, controversial photograph to show the dangers our soldiers faced in Helmand province
Revealed: the best and worst airlines for delays

Revealed: the best and worst airlines for delays

Many flyers are failing to claim compensation to which they are entitled, a new survey has found
The stories that defined 2014: From the Scottish independence referendum to the Ice Bucket Challenge, our writers voice their opinions

The stories that defined 2014

From the Scottish independence referendum to the Ice Bucket Challenge, our writers voice their opinions
Stoke-on-Trent becomes first British city to be classified as 'disaster resilient' by the United Nations

Disaster looming? Now you know where to head...

Which British city has become the first to be awarded special 'resilience' status by the UN?