WATCH: Incredible video of twin babies FIGHTING in womb!
The bubs have been spotted interacting before
Sibling rivalry often ends in arguments and can sometimes even come to blows.
However, imagine the surprise one mum got when she watched her unborn twins appear to fight with one another in the womb!
The baby twins, from China, shared the same amniotic sac and placenta, which is known as monochorionic-monoamniotic twins, or mo-mo twins — one of the highest types of risks involved with twin pregnancies.
Watch the little bubs in action below:
The twins’ Dad, Mr Tao, had seen the baby girls – nicknamed Strawberry and Cherry - cuddling into one another during a routine scan.
However, one another occasion, the baby’s Dad saw them appear to come to blows.
He told Chinese news outlet The Paper, that he saw his still unborn daughters "boxing each other for a few rounds".
He took a video of the ultrasound footage before he uploaded it to the app Douyin. The video went viral soon after.
Cherry and Strawberry were born healthy at 32 weeks via caesarean section.
They’re the first pair of mo-mo twins the hospital has ever successfully delivered.
Nicola Conville has worked as a journalist and editor for more than 20 years across a wide range of print and online publications. Her areas of expertise are parenting, health and travel. She has two children; Lucy, age eight, and Nathan, age five.