Skip Nav
Love It. Save Your Favorites Now.
15 Interesting Facts That You May Not Know About Twins
View On One Page
Photo 1 of 3  
ADVERTISEMENT ()
1

  1. Twins can have different fathers: A rare situation called heteropaternal superfecundation can result in twins who have different fathers. If an ovulating woman has sex with two different men and releases multiple eggs during a certain period, she may conceive babies who share a womb but not a father.
  2. The average twin birth weight is 5 pounds 5 ounces: Because twins tend to be delivered early, their weight at birth averages out to a relatively low 5 pounds 5 ounces.
  3. Women can be predisposed to fraternal twins, not identical: The "twin gene" allows women to be genetically predisposed to conceiving fraternal twins, but identical twins are always the result of a random egg split.
  4. Asia and Latin America have the lowest birthrates of twins: Not much is known about the reason, but Latin American and Asian countries produce the fewest number of twins per 1000 births.
  5. Eighteen percent of identical twins have different dominant hands: If your identical twins indicate a different handedness from one another, they're not alone — over 18 percent of their peers do the same.
Previous Next
I Tried a Postpartum Personal Assistant
Parenting
How a Postpartum Personal Assistant Helped Me Through the Newborn Trenches
by Kelsey Garcia 6/18
r/MomForAMinute Reddit Community Offers Maternal Support
Mother's Day
Meet the Reddit Community That Will Be Your Mom For a Minute
by Taylor Andrews 5/07
Sundown Scaries: An Expert on New Parent Anxiety at Night
Family Life
How to Survive the "Sundown Scaries" as a New Parent
by Taylor Andrews 12/01/25
I Didn't Have a Sleep Supportive Family: Why I Sleep In Now
Parenting
I Have "Sleep Supportive Family" Trauma, but I'm Trying to Nap Anyway
by Taylor Andrews 10/01/25
Why These Women Want to Be TikTok's "Cool Aunt"
Travel Inspiration
Why Everyone on TikTok Wants to Be a "Cool Aunt"
by Emma Glassman-Hughes 9/25/25
Post-Baby Clarity: Doctor Shares What It Is, Why It Happens
Parenting
"Post-Baby Clarity" Is the Ultimate Relationship Test
by Taylor Andrews 8/20/25

From Our Partners

Now You Know

Love Is Blind: Where Do Those Engagement Rings Come From?

Fashion

Everything to Know About the "Love Is Blind" Engagement Rings

by Sarah Wasilak 2/19

shopping

Oprah's Favorite Things List Has Major Gems, Including an Under-$100 Air Fryer

by Balim Tezel 11/06/25

Fitness

Paralympians Earn the Same Pay For Medals as Olympians, but Is It Enough?

by Karenna Meredith 8/29/24

health

How Often Should We Be Getting COVID Vaccines?

by Alexis Jones 8/23/24

Food

Pumpkin Spice Season Is Back Aug. 22

by Lauren Mazzo 8/21/24

Beauty

The Exact Red Lipstick Alexandria Ocasio-Cortez Swears By

by Alaina Demopoulos 8/20/24

health

What to Know About the Latest Mpox Outbreak, According to MDs

by Alexis Jones 8/16/24

health

Céline Dion Promised Her Children She’d Live: “They Already Lost a Parent.”

by Sara Youngblood Gregory 6/11/24

Latest Family
We're Hiring! Write For Us Advertise With Us Accessibility Contact Archives
Power Your Happy
Terms Privacy Policy
©2026 Vox Media, LLC. All Rights Reserved.