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Facebook video of preemie twins holding hands goes viral

Last Updated Jan 20, 2016 6:30 PM EST

The family of premature newborn twins in Australia captured a heart-tugging moment on video, and it's gone viral around the world.

New mom Anthea Jackson-Rushford posted a short video on Facebook showing the twins, Kristiana and Kristian, holding each others' tiny hands as their father cradles them against his chest.

"He actually holds her hand!" says a voice off camera. "How is that possible?"

Amazing!!! Needs to go viral!!! 󾌴󾌴 our preemie twins Kristiana and Kristian! Born at just 28 weeks and 1 day! Weighed in at under a kilo each! 󾌴󾌴 #preemietwins

Posted by Anthea Jackson-Rushford on Wednesday, January 13, 2016

A few days later, the proud mom posted a follow-up: "2.3million views for my lil Angels!!! They're famous and so is their daddy lol!!"

And its popularity kept growing -- as of January 20, the video had racked up 8.4 million views and counting.

The babies were born January 4 at 28 weeks, weighing in at "under a kilo," or 2.2 pounds, each, their mother said. Recent research shows survival rates for babies born that young have been improving in recent years. Skin-to-skin cuddling like their father was doing in the video -- known as "kangaroo care" -- has been shown to help boost preemies' health and wellbeing.

The video that captured so many hearts wasn't just a one-time thing. The twins can be seen holding hands in picture after picture posted on Jackson-Rushford's Facebook page. "As you can clearly see, they can't stop holding hands!!" she wrote.

Both my angels holding hands again as if they were born to! Amazing sight!

Posted by Anthea Jackson-Rushford on Saturday, January 16, 2016