London Daily

Focus on the big picture.
Friday, Aug 22, 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
After 200,000 Orders in 2 Minutes: Xiaomi Accelerates Marketing in Europe
Ukraine Declares De Facto War on Hungary and Slovakia with Terror Drone Strikes on Their Gas Lifeline
Animated K-pop Musical ‘KPop Demon Hunters’ Becomes Netflix’s Most-Watched Original Animated Film
New York Appeals Court Voids Nearly $500 Million Civil Fraud Penalty Against Trump While Upholding Fraud Liability
Elon Musk tweeted, “Europe is dying”
Far-Right Activist Convicted of Incitement Changes Gender and Demands: "Send Me to a Women’s Prison" | The Storm in Germany
Hungary Criticizes Ukraine: "Violating Our Sovereignty"
Will this be the first country to return to negative interest rates?
Child-free hotels spark controversy
North Korea is where this 95-year-old wants to die. South Korea won’t let him go. Is this our ally or a human rights enemy?
Hong Kong Launches Regulatory Regime and Trials for HKD-Backed Stablecoins
China rehearses September 3 Victory Day parade as imagery points to ‘loyal wingman’ FH-97 family presence
Trump Called Viktor Orbán: "Why Are You Using the Veto"
Horror in the Skies: Plane Engine Exploded, Passengers Sent Farewell Messages
MSNBC Rebrands as MS NOW Amid Comcast’s Cable Spin-Off
AI in Policing: Draft One Helps Speed Up Reports but Raises Legal and Ethical Concerns
Shame in Norway: Crown Princess’s Son Accused of Four Rapes
Apple Begins Simultaneous iPhone 17 Production in India and China
A Robot to Give Birth: The Chinese Announcement That Shakes the World
Finnish MP Dies by Suicide in Parliament Building
Outrage in the Tennis World After Jannik Sinner’s Withdrawal Storm
William and Kate Are Moving House – and the New Neighbors Were Evicted
Class Action Lawsuit Against Volkswagen: Steering Wheel Switches Cause Accidents
Taylor Swift on the Way to the Super Bowl? All the Clues Stirring Up Fans
Dogfights in the Skies: Airbus on Track to Overtake Boeing and Claim Aviation Supremacy
Tim Cook Promises an AI Revolution at Apple: "One of the Most Significant Technologies of Our Generation"
Apple Expands Social Media Presence in China With RedNote Account Ahead of iPhone 17 Launch
Are AI Data Centres the Infrastructure of the Future or the Next Crisis?
Cambridge Dictionary Adds 'Skibidi,' 'Delulu,' and 'Tradwife' Amid Surge of Online Slang
Bill Barr Testifies No Evidence Implicated Trump in Epstein Case; DOJ Set to Release Records
Zelenskyy Returns to White House Flanked by European Allies as Trump Pressures Land-Swap Deal with Putin
The CEO Who Replaced 80% of Employees for the AI Revolution: "I Would Do It Again"
Emails Worth Billions: How Airlines Generate Huge Profits
Character.ai Bets on Future of AI Companionship
China Ramps Up Tax Crackdown on Overseas Investments
Japanese Office Furniture Maker Expands into Bomb Shelter Market
Intel Shares Surge on Possible U.S. Government Investment
Hurricane Erin Threatens U.S. East Coast with Dangerous Surf
EU Blocks Trade Statement Over Digital Rule Dispute
EU Sends Record Aid as Spain Battles Wildfires
JPMorgan Plans New Canary Wharf Tower
Zelenskyy and his allies say they will press Trump on security guarantees
Beijing is moving into gold and other assets, diversifying away from the dollar
Escalating Clashes in Serbia as Anti-Government Protests Spread Nationwide
The Drought in Britain and the Strange Request from the Government to Delete Old Emails
Category 5 Hurricane in the Caribbean: 'Catastrophic Storm' with Winds of 255 km/h
"No, Thanks": The Mathematical Genius Who Turned Down 1.5 Billion Dollars from Zuckerberg
The surprising hero, the ugly incident, and the criticism despite victory: "Liverpool’s defense exposed in full"
Digital Humans Move Beyond Sci-Fi: From Virtual DJs to AI Customer Agents
YouTube will start using AI to guess your age. If it’s wrong, you’ll have to prove it
×