Penis Diversity Across Species

The average penis: smaller than you think, more complex than you know. Michael Regilio gets to the meat of the matter here on Skeptical Sunday!

Welcome to Skeptical Sunday, a special edition of The Jordan Harbinger Show where Jordan and a guest break down a topic that you may have never thought about, open things up, and debunk common misconceptions. This time around, we’re joined by skeptic, comedian, and podcaster Michael Regilio!

Full show notes and resources can be found here: jordanharbinger.com/1225

On This Week's Skeptical Sunday:

• The penis first evolved roughly 425 million years ago as a more precise method of fertilization — allowing species to reproduce efficiently when eggs were protected inside the body.
• Humans are unique among mammals for losing the penis bone and spines, evolving instead toward smooth anatomy and longer lovemaking tied to emotional intimacy.
• Modern men experience anxiety over penis size — despite studies showing the global average is about 5.16 inches and 85% of women report satisfaction with their partner’s size.
• Pornography, camera tricks, and unrealistic media images distort expectations, fueling insecurity and demand for enhancement products that often solve imaginary problems.
• Confidence, care, and education matter more than size — regular exercise, stress reduction, hydration, and pelvic floor training (Kegels) improve both sexual health and self-esteem.
• Connect with Jordan on Twitter, Instagram, and YouTube. If you have something you'd like us to tackle here on Skeptical Sunday, drop Jordan a line at jordan@jordanharbinger.com and let him know!
• Connect with Michael Regilio at Twitter, Instagram, Threads, Bluesky, and YouTube, and check out War Bar, his new comedy special!

And if you're still game to support us, please leave a review here — even one sentence helps!

• Sign up for Six-Minute Networking — our free networking and relationship development mini course — at jordanharbinger.com/course!
• Subscribe to our once-a-week Wee Bit Wiser newsletter today and start filling your Wednesdays with wisdom!
• Do you even Reddit, bro? Join us at r/JordanHarbinger!

This Episode Is Brought To You By Our Fine Sponsors:

• Rugiet: 15% off: rugiet.com, code JORDAN
• Article: $50 off first purchase of $100 or more: article.com/jordan
• ZipRecruiter: Learn more at ziprecruiter.com/jordan
• Apretude: Learn more: Apretude.com or call 1-888-240-0340
• Shopify: 3 months @ $1/month (select plans): shopify.com/jordan

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.