Globally, mothers are having fewer children. Yet despite this latest observed decline in birth rates, the number of twins and triplets being born today is higher than ever before.

More twins are being born now than ever before, largely due to rising use of in vitro fertilization (IVF) and other assisted reproduction techniques, the first global study of human twinning has ...

While it admittedly isn't common for twins to be born on different days, let alone in different years, Alfredo and Aylin are not totally unique in this feat.

A set of twins were born just 15 minutes apart, but their birthdays are on separate days, months and years.

Watch These Newborn Twins Reach For Each Other's Hands Just Moments After Being Born By Kate Schweitzer Updated on Sep 2, 2019 at 1:05 PM View this post on Instagram ...

SALINAS, Calif. — Two California siblings share a special and rare lifelong connection after being born just minutes apart but on different days, months and years.

Fraternal twins Aylin and Alfredo Trujillo were born on different days in different months and years in what some estimate as a 1 in 2 million occurance.

More twins are being born now than ever before, largely due to rising use of in vitro fertilisation (IVF) and other assisted reproduction techniques, the first global study of human twinning has ...