AUG 20, 2017 11:33 AM PDT

Why are we attracted to people who resemble us?


Have you ever seen two people walking along who you are sure are most definitely siblings because of how similar they look...and then they start kissing and you really hope they're not siblings? As weird as it seems, multiple studies have shown that we are drawn towards people who look like us for mates. For example, one study published in PLOS in 2013 found that subjects found their partner's face more attractive after it was digitally mixed with their own. This may sound surprising giving the well-known genetic detriments of reproducing with your relatives. So what, then, does explain the reasoning behind our attraction to people who have similar characteristics as ourselves?

One study published in PNAS from 2014 compared the genetic data for 862 older, married couples and found that the couples were more genetically similar than random, non-married pairs. While this suggests that you are likely to end up with someone who is somewhat genetically similar to you, another study hastens to point out that too much genetic similarity actually can make someone seem less attractive, and that the middle ground of genetic similarity usually seems the most attractive in a partner. Want to learn more about your unexplained crush on your look-alike? Watch the video!

About the Author
  • Kathryn is a curious world-traveller interested in the intersection between nature, culture, history, and people. She has worked for environmental education non-profits and is a Spanish/English interpreter.
You May Also Like
JUL 07, 2020
Space & Astronomy
Should We Fly By Venus on the Way to Mars?
JUL 07, 2020
Should We Fly By Venus on the Way to Mars?
After landing on the Moon, heading to Mars became the next logical step for space exploration. Some suggest that flying ...
JUL 23, 2020
Plants & Animals
Sharks Missing from 1/5 of World's Reefs
JUL 23, 2020
Sharks Missing from 1/5 of World's Reefs
Sharks of all sizes are vital to coral reef ecosystems, both as predators and prey. Shark populations have rapidly decli ...
SEP 24, 2020
Plants & Animals
Cuvier's Beaked Whale Sets New Diving Record
SEP 24, 2020
Cuvier's Beaked Whale Sets New Diving Record
Marine mammals are uniquely adapted to dive to incredible depths. New research from Duke University Marine Laboratory do ...
OCT 01, 2020
Space & Astronomy
Four Lakes Detected Under Martian Surface
OCT 01, 2020
Four Lakes Detected Under Martian Surface
  Researchers from Roma Tre University in Italy have confirmed the existence of four large lakes under the ice at M ...
OCT 03, 2020
Space & Astronomy
NASA Launches $23m Toilet to Space Station
OCT 03, 2020
NASA Launches $23m Toilet to Space Station
On late October 2nd, NASA launched a spacecraft carrying 4 tonnes of cargo, including scientific equipment, food hardwar ...
NOV 04, 2020
Plants & Animals
Scientists Rediscover "Lost" Chameleon Species in Madagascar
NOV 04, 2020
Scientists Rediscover "Lost" Chameleon Species in Madagascar
Voeltzkow’s chameleon was recently rediscovered after disappearing for more than 100 years. According to an articl ...
Loading Comments...