Science reveals reason mothers tend to cradle their babies on left-hand side

Humans and other animals are known to hold their offspring on the left-handside of their bodies in a practice called "left-cradling bias."

Scientists have long been puzzled over this behavior, but a recently published study by an international team of researchers largely attributes it to eye contact and brain processing.

According to the BBC, researchers found that the positioning encourages contact between the left eyes of the mother and offspring.

They believe that this, in turn, triggers the right side of the mother's brain which is considered to be responsible for visual processing.

See more related to this story:

16 PHOTOS
Most original celebrity baby names of 2016
See Gallery
Most original celebrity baby names of 2016
Baby girl 😍😍😍
I'm hearing, "Happy Mother's Day" and I can't believe how lucky I am! Of all the fashionable hats I wear, I love being a #mother the most. #HappyMothersDay from me and my mama to all the wonderful women of the world!
All dressed & ready to see my favorite guy in the world for his birthday @troubleman31 see u soon & Happy happy birthday frm daddy's Babygirl HeiressDiana👑💜
I loved going in the pool today with @nicole.m.johnson (mommy) and @m_phelps00 (daddy) today! Can't wait til I get to learn to swim from daddy and @coach_bowman !
The Real.
Lu and big bro!
This little guy is magic 😊 #RemyB
Greyson's baptism 💙 meilani refused family photos lol too busy with her girlfriends 🙄🙄🙄 thank you so much @apinard for this picture 💜💜💜
Words can't describe 💗 Dusty Rose Levine 9/21/16
Me and my little buddy shopping for baby stuff at #buybuybaby #babies #family
⚽️
Happy birthday Mrs Oliver !! 👍 42 today girl !! Jeeze where did all that time go since we first met, Hope you had a great day babe, love you and of course the dude that is baby River 🚀Oliver. Xxx
Thank you #ellendegeneres for officially making JRS a part of the Beyhive!! And for your kindness to me, always xx @theellenshow
Saturday snuggles. Pjays and Michigan football required! #mygirl
HIDE CAPTION
SHOW CAPTION
of
SEE ALL
BACK TO SLIDE

As such, the mother could perhaps better identify her baby's needs by reading his or her expressions or help track her offspring if they were to get separated.

The paper explains that this exchange "reflects socio-emotional processes and potentially facilitates mother–infant relationships."

For the research, the team observed this interaction among humans and 10 other animals including whales, kangaroos, and reindeer.

The researchers were able to confirm that all of them showed this bias.

Read Full Story

Sign up for Breaking News by AOL to get the latest breaking news alerts and updates delivered straight to your inbox.

Subscribe to our other newsletters

Emails may offer personalized content or ads. Learn more. You may unsubscribe any time.