London Daily

Focus on the big picture.
Friday, Sep 12, 2025

Bigger Hips in Women May Be Due to Human Ancestors Laying Eggs, Study Claims

Bigger Hips in Women May Be Due to Human Ancestors Laying Eggs, Study Claims

For years, scientists believed that the reason that women had wider hips than men was for the need to allow for the delivery of babies, whose heads are the widest part of their bodies at birth.

Evolution granted women wider hips compared to men due to the possibility of our primitive ancestors laying eggs to give birth, according to Barbara Fischer, who led new research from the University of Vienna.

Despite the longstanding belief that the width of female pelvic bones stemmed from the need to ease childbirth, the group of researchers led by Fischer suggests that "the pattern of sex differences in the human pelvis is probably much older than previously thought."

Having compared the human pelvis to that of our animal "relatives", chimpanzees, the researchers discovered that the pattern of sex differences is the same, even though chimpanzees give birth much more easily than humans.

"We analyzed 3D data of pelves for these two species and found that they show the same pattern of sex differences, despite large overall species differences," Fischer says.

According to her, the similarity suggests that the pattern of sex differences was already present in a common human-like ancestor that the two species share. Fischer went on to suggest that even the way of childbirth might have been different for these ancestors.

"The female pelvis is indeed possibly wider because an evolutionary ancestor of ours laid large eggs", she told The Daily Mail. "In our paper, we show that the evolutionary pattern of a sexually dimorphic pelvis [differing between the sexes] has not been developed by modern humans but is inherited from our ancestors and it might indeed stem from early mammals or amniotes [other animals such as birds and reptiles], who laid large eggs or gave birth to large foetuses."

The evolutionary mechanisms that allowed the widening of hips might have been left in the human code and therefore "did not need to evolve anew", according to the ideas put forth by the research team.

The only egg-laying mammals alive on the earth today are platypuses and spiny anteaters, also known as echidnas.

Newsletter

Related Articles

0:00
0:00
Close
Volkswagen launches aggressive strategy to fend off Chinese challenge in Europe’s EV market
ChatGPT CEO signals policy to alert authorities over suicidal youth after teen’s death
The British legal mafia hit back: Banksy mural of judge beating protester is scrubbed from London court
Surpassing Musk: Larry Ellison becomes the richest man in the world
Embarrassment for Starmer: He fired the ambassador photographed on Epstein’s 'pedophile island'
Manhunt after 'skilled sniper' shot Charlie Kirk. Footage: Suspect running on rooftop during panic
Effective Protest Results: Nepal’s Prime Minister Resigns as Youth-Led Unrest Shakes the Nation
Qatari prime minister says Netanyahu ‘killed any hope’ for Israeli hostages
King Charles and Prince Harry Share First In-Person Moment in 19 Months
Starmer Establishes Economic ‘Budget Board’ to Centralise Policy and Rebuild Business Trust
France Erupts in Mass ‘Block Everything’ Protests on New PM’s First Day
Poland Shoots Down Russian Drones in Airspace Violation During Ukraine Attack
Brazilian police say ex-President Bolsonaro had planned to flee to Argentina seeking asylum
Trinidad Leader Applauds U.S. Naval Strike and Advocates Forceful Action Against Traffickers
Kim Jong Un Oversees Final Test of New High-Thrust Solid-Fuel Rocket Engine
Apple Introduces Ultra-Thin iPhone Air, Enhanced 17 Series and New Health-Focused Wearables
Macron Appoints Sébastien Lecornu as Prime Minister Amid Budget Crisis and Political Turmoil
Supreme Court temporarily allows Trump to pause billions in foreign aid
Charlie Sheen says his father, Martin Sheen, turned him in to the police: 'The greatest betrayal possible'
Vatican hosts first Catholic LGBTQ pilgrimage
Apple Unveils iPhone 17 Series, iPhone Air, Apple Watch 11 and More at 'Awe Dropping' Event
Pig Heads Left Outside Multiple Paris Mosques in Outrage-Inducing Acts
Nvidia’s ‘Wow’ Factor Is Fading. The AI chip giant used to beat Wall Street expectations for earnings by a substantial margin. That trajectory is coming down to earth.
France joins Eurozone’s ‘periphery’ as turmoil deepens, say investors
On the Anniversary of Queen Elizabeth’s Death: Prince Harry Returns to Britain
France Faces New Political Crisis, again, as Prime Minister Bayrou Pushed Out
Murdoch Family Finalises $3.3 Billion Succession Pact, Ensuring Eldest Son’s Leadership
Big Oil Slashes Jobs and Investments Amid Prolonged Low Crude Prices
Court Staff Cover Up Banksy Image of Judge Beating a Protester
Social Media Access Curtailed in Turkey After CHP Calls for Rallies Following Police Blockade of Istanbul Headquarters
Nayib Bukele Points Out Belgian Hypocrisy as Brussels Considers Sending Army into the Streets
Elon Musk Poised to Become First Trillionaire Under Ambitious Tesla Pay Plan
France, at an Impasse, Heads Toward Another Government Collapse
Burning the Minister’s House Helped Protesters to Win Justice: Prabowo Fires Finance Minister in Wake of Indonesia Protests
Brazil Braces for Fallout from Bolsonaro Trial by corrupted judge
The Country That Got Too Rich? Public Spending Dominates Norway Election
Nearly 40 Years Later: Nike Changes the Legendary Slogan Just Do It
Generations Born After 1939 Unlikely to Reach Age One Hundred, New Study Finds
End to a four-year manhunt in New Zealand: the father who abducted his children to the forests was killed, the three siblings were found
Germany Suspends Debt Rules, Funnels €500 Billion Toward Military and Proxy War Strategy
EU Prepares for War
BMW Eyes Growth in China with New All‑Electric Neue Klasse Lineup
Trump Threatens Retaliatory Tariffs After EU Imposes €2.95 Billion Fine on Google
Tesla Board Proposes Unprecedented One-Trillion-Dollar Performance Package for Elon Musk
US Justice Department Launches Criminal Mortgage-Fraud Probe into Federal Reserve Governor Lisa Cook
Escalating Drug Trafficking and Violence in Latin America: A Growing Crisis
US and Taiwanese Defence Officials Held Secret Talks in Alaska
Report: Secret SEAL Team 6 Mission in North Korea Ordered by Trump in 2019 Ended in Failure
Gold Could Reach Nearly $5,000 if Fed Independence Is Undermined, Goldman Sachs Warns
Uruguay, Colombia and Paraguay Secure Places at 2026 World Cup
×