Ronnie and Donnie Gaylon were born in 1951, but doctors told their parents that their boys would not live more than a day.

Despite all the tragic predictions, the two recently celebrated their 64th anniversary, making them the longest-lived Siamese in the world!

The two have four hands, four legs, but they share the same digestive tract and the same pelvic area.

For 64 years the twins have shared the most intimate moments of their lives, their survival is a constant struggle between compromise and cooperation.

Despite the fact that they are physically limited, the two brothers manage to finish it because they love each other a lot.

They each represented the greatest support for each other. Here is what Jim says about his brothers: “I am one body, but believe me, they are two totally different beings.”

Watch the video below to learn more about the lives of these two exceptional people: