A mom's viral TikTok reveals how one twin's jaw was affected by in-utero pressure from her sister. Despite the initial concern, the mom of two has perfectly healthy twin girls and the issue has since ...

What if your birthmark was actually a sign that you absorbed your twin in the womb? 😱 Scientists call this phenomenon ...

Parenting twins to be close to one another and good friends who can resolve arguments is very difficult. You can do it with ...

Lucy Notarantonio is Newsweek's Senior Lifestyle and Trends Reporter, based in Birmingham, UK. Her focus is trending stories and human interest features ranging from health, pets and travel.

Calves born with knuckle over pasterns, also known as contracted tendons, present a unique challenge for dairy and beef ...

Millions of babies have been born through in vitro fertilisation in Nigeria and all over the world. IVF has enabled millions ...

and they are the common type of twins. They have their own amniotic sacs and placenta, so are just sharing the womb of the mother, and are therefore not identical. There are few complications with ...

The actor pulls double duty as twins facing a deadly toy monkey in the Stephen King adaptation, which had a script that he loved but left him "slightly confused" because of its comedic tone.