The World's Oldest Conjoined Twins Show Some Brotherly Love (VIDEO)

Ronnie and Donnie Galyon are brothers, but they're closer than most. The 59-year-olds are the oldest conjoined twins in the world. The twins were born fused together at the torso. They have four legs, four arms, separate hearts, and separate lungs. But from the middle of the chest downwards, they share everything.

It's an odd life, and we get a glimpse of it on 'World's Oldest Conjoined Twins Move Home' (Wed., 8PM ET on TLC). The twins are like any other brothers -- except that they're not. Sometimes they fight, as all siblings do. But since they're joined together, they can't storm off and leave the room.

But for the vast majority of the time, they get along, and show us a far more impressive version of "brotherly love." None of us has to spend 24 hours a day with a sibling, but Ronnie and Donnie have done it for six decades now.

The twins were not expected to live when they were born: "Siamese" twins only have a 25 percent survival rate, and the Galyons are the only adult conjoined brothers who are currently alive. But last year, the twins nearly died. And so, on the TLC special, the twins return home to Ohio, where they stay with their younger brother Jim, who gives them round-the-clock assistance with their medical needs.

No adult wants to be forced to move back home, but for Ronnie and Donnie, it's just another compromise in a life filled with compromises. Still, when we see the twins eating hot dogs -- as they watch a Little League game, back in their hometown of Dayton -- they just seem like ... brothers.