Hutchison told Newsweek she knew her daughters "came into existence together for a reason" and couldn't possibly choose one ...

Around 1 in 250 pregnancies result in identical or “monozygotic” twins, but the mechanism behind monozygotic twinning has remained elusive, partly because the phenomenon is so rare and partly due to ...

Mallory Carlson's identical twin daughters weren't even a year old when they were diagnosed with a very rare type of cancer The mom of three shares with PEOPLE how she had to continually speak up at ...