Nature is full of fascinating and sometimes brutal adaptations, but few are as shocking as the birthing process of the spotted hyena. You might think childbirth is a universally painful experience, but hyenas take it to an entirely new level.
Female hyenas have one of the most unusual reproductive anatomies in the animal kingdom—what appears to be a penis is actually an elongated clitoris, known as a pseudo-penis. This rare adaptation makes mating, birth, and survival incredibly difficult for both mother and cubs.
Let’s dive into the science, struggles, and evolutionary mysteries behind why hyenas experience one of the most challenging births in the wild.
Hyenas’ Unique Reproductive Anatomy: A Bizarre Evolutionary Twist

The female spotted hyena (Crocuta crocuta) is unlike any other mammal when it comes to reproduction. Unlike most female mammals, hyenas have no external vaginal opening. Instead, their labia are fused together, forming a pseudo-scrotum, and their clitoris is elongated into what resembles a fully functional penis.
This means that both mating and giving birth happen through a narrow, tough, and inflexible canal—a structure that poses serious risks to both mother and cubs.
But why would evolution favor such an extreme adaptation? The answer lies in hyena social structure and dominance.
The Link Between Dominance and Reproductive Anatomy
Hyenas live in strict matriarchal societies, where females outrank males in dominance. The unusual reproductive anatomy is believed to be an evolutionary adaptation linked to social hierarchy.
- A Display of Strength: A larger pseudo-penis might act as a dominance signal, making it clear which females hold power in the clan.
- Hormonal Influence: Female hyenas have higher testosterone levels than males, leading to increased aggression and dominance over the pack.
- Mating Challenges: Males must earn the right to mate, as females control copulation with their complicated anatomy.
Video : Hyenas’ Brutal Birth: The Most Painful Labor in the Animal Kingdom
While this system gives females power, it comes at a terrible cost when it’s time to give birth.
Why Giving Birth Is So Dangerous for Hyenas
Imagine trying to push a newborn through a passage too small, too rigid, and highly prone to tearing. That’s exactly what female hyenas go through every time they give birth.
Here’s what makes hyena birth so deadly:
- A Super Tight Birth Canal
- The pseudo-penis acts as the only birth canal, but it is long, narrow, and lacks the elasticity of a normal vagina.
- This makes labor extremely difficult and painful, with a high chance of the tissue tearing.
- First-Time Mothers Face the Worst Risks
- Many first-time mothers do not survive the birthing process due to severe ruptures.
- Those who do survive often suffer from long-term damage to their reproductive organs.
- High Cub Mortality Rate
- A staggering 60% of hyena cubs suffocate before they are fully delivered.
- Since the birth canal is so tight, cubs often become trapped and die before they can emerge.
- A Painful Recovery Process
- After birth, the pseudo-penis often ruptures completely, forcing it to heal over time.
- Mothers suffer weeks of pain and vulnerability while their bodies recover.
Despite these brutal challenges, hyenas continue to thrive, and their unique reproductive system has remained largely unchanged for millions of years.
How Do Hyenas Mate? The Struggles of Reproduction

If you think birth is difficult for hyenas, mating is no easier. Males must overcome significant anatomical and social obstacles just to reproduce.
- Males Are Submissive to Females
- Unlike in many species where males dominate, male hyenas are the weaker sex in both power and ranking.
- They must approach females cautiously, often displaying submissive behavior to gain approval.
- Navigating the Pseudo-Penis
- Since females have no traditional vaginal opening, males must carefully maneuver through the pseudo-penis to copulate successfully.
- This requires both patience and precise positioning, making it one of the most complex mating processes in the animal world.
- Only the Strongest Males Get to Reproduce
- Males don’t fight each other for dominance like in other species. Instead, they must earn the female’s trust over time.
- Females choose mates based on persistence, patience, and respect, ensuring only the most determined males pass on their genes.

Given how dangerous and inefficient the reproductive process is for hyenas, one might wonder why evolution hasn’t corrected this issue.
The answer lies in survival strategy and social dynamics.
- Matriarchal Control Guarantees Stronger Cubs
- By limiting mating to only the most persistent males, female hyenas ensure that their cubs inherit strong genetics.
- This method prevents weaker genes from spreading, keeping the species robust.
- Higher Testosterone Helps With Survival
- The same high testosterone that makes birth difficult also makes female hyenas stronger and more aggressive.
- This aggression helps protect their cubs and maintain dominance in their environment.
- Fewer Cubs = More Resources
- Since many cubs don’t survive birth, the ones that do are often given more attention and resources.
- This ensures the strongest cubs make it to adulthood, increasing the clan’s overall survival rate.
The Resilience of the Spotted Hyena
Despite their brutal birthing process, hyenas have thrived for millions of years. Their ability to adapt, dominate, and survive proves just how powerful evolutionary trade-offs can be.
- They are among Africa’s most successful predators, competing with lions for food.
- Their clans are ruled by powerful females, ensuring only the strongest members survive.
- They have some of the most advanced social structures in the animal kingdom, making them highly intelligent and strategic.
Video : The Most Extreme Births In The Animal Kingdom
Conclusion: Nature’s Ultimate Test of Survival
Hyenas are proof that nature often prioritizes survival over comfort. Their unique reproductive anatomy, extreme birthing challenges, and dominance-driven society have allowed them to thrive despite overwhelming odds.
While their birth process remains one of the most painful and deadly in the animal kingdom, it also ensures that only the strongest females and cubs survive.
So the next time you see a spotted hyena, remember—they’re not just fierce scavengers. They’re survivors of one of evolution’s toughest reproductive challenges.
Mom of 3 Kids Crying of Hunger Learns She Can’t Pay for Burgers, ‘No Worries,’ Low Voice Assures — Story of the Day

A mom and her three children took the wrong bus and ended up lost. She realized she couldn’t buy her children food until a low voice startled her, offering much-needed assistance.
Julia had no choice but to raise her three growing children alone after her husband left her. He had been cheating on her with her best friend, and once she found out about their love triangle, he left her and stopped supporting their children.
At the time, Julia was devastated. She thought her life was ruined. She suffered from major trust issues after being betrayed not just by her husband but also her best friend.

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“You have to pull yourself together, Julia. You have three children you need to raise. You can’t be sulking at home because of what they did to you. Use it as motivation to do better,” her mom said after seeing Julia crying in the bathroom.
Julia looked at her children and knew that her mom was right. She had to look after her kids and make sure they lived comfortable lives, even if it meant working two jobs to earn enough money.
Julia’s mom, Lisa, happily volunteered to care for the three kids while she was at work. She had two jobs, working a total of 14 hours a day.

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Every day, she would start working at six in the evening, working as a waiter. Then from one in the morning until eight, she would work as a housekeeper at an inn.
By the time she got home, she had about three hours until her children woke up. She’d use this time to sleep before waking up alongside her kids to play with them and clean the house.
Julia’s work schedule exhausted her, especially because she didn’t get enough sleep every day. This lack of sleep often caused her to be scatter-brained, unable to remember the simplest things.

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One weekend morning, Julia had to take her kids to the hospital for their vaccinations. On their way home, Julia accidentally mixed up the bus routes, and they ended up in a place in town they’d never been.
Unfortunately, it would take another hour before another bus came around. She bought tickets at the bus stop and they quietly sat there until her kids began to cry, yelling that they were hungry.
Julia walked to a nearby burger stand, where she ordered four burgers. When she was about to pay, she frantically searched for her wallet inside her bag, only to look up at the sky, defeated.

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“My wallet was right here,” she cried. “I just purchased our bus tickets!” She looked through her bag again.
“I’m sorry to hear that, ma’am,” the man who took her order said. “This part of town is notorious for pick-pockets.”
Julia looked at her kids, ashamed that she couldn’t buy them food. She apologized to them and told them they’d have to wait an hour before they could eat, only for them to cry even louder. “Mom, I haven’t eaten the whole day!” her daughter whined. “I’m so hungry!”

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At that moment, Julia was at her breaking point. Her eyes started to fill with tears. Suddenly, she heard a low voice say, “No worries.”
She looked up and saw the man from the burger stand taking out his wallet. He paid for the burgers, packed a bag for Julia, and handed it to her.
“Please, take this. It’s on the house,” he told her.
Julia looked at the man in shock. Tears started to stream down her face, and she thanked the man numerous times. “Thank you so much; you have no idea how much this means to me,” she told him. “Can I please ask for your number? I want to pay you back once I can get some money.”
The man shook his head. “It’s no big deal, and it’s a simple act of kindness I’d like to do for you.”

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Ever since that day, Julia always made sure to help someone out whenever she had the chance. After working two jobs for a few more years, she earned enough money to start her own business. She created a mobile app that allowed users to book different services, from housekeepers to nail technicians, laundry shops, car cleaners, and more.
One day, while in a business meeting, Julia came across the man who helped her several years back.
“You’re the guy from the burger stand,” she said. He smiled, recognizing her as well.
“You’re the mom with three crying children,” he recalled. “How have you been?”

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That conversation ended up being life-changing for both of them. Julia insisted on treating the man, who introduced himself as Jacob, to dinner. It was her way of paying him back.
She discovered Jacob was looking for a job and she decided to hire him as her executive secretary. He went with her to all her meetings and helped her grow her business.
Eventually, after spending so much time together and getting to know each other more, they fell in love. They married, and Jacob adopted Julia’s three children, loving them as his own.
What can we learn from this story?
- If you’re in the position to help someone, do it. The man felt terrible that Julia couldn’t feed her children when they were hungry, so he stepped in to help her. When you’re capable of helping someone in need, do it without expecting anything in return, as it could save that person from reaching their breaking point.
- What goes around comes around. After receiving an act of kindness, Julia paid it forward. Eventually, she came across the man who helped her again, this time in the position to help. This led to a beautiful working and personal relationship between them.
Share this story with your friends. It might brighten their day and inspire them.
If you enjoyed this story, you might like this one about a beggar who gave half of his pizza to a hungry rich man, only for the man to give half his business to the beggar later on.
This piece is inspired by stories from the everyday lives of our readers and written by a professional writer. Any resemblance to actual names or locations is purely coincidental. All images are for illustration purposes only. Share your story with us; maybe it will change someone’s life.
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