I'm amazed how they speak in unison (with very similar voices) most of the time. They're two brains and two mouths with separate vocal chords after all, yet there is an absolute, almost telepathic connect - without them ever interrupting each other. Often one of them finishes the other's sentence or chirps in with the exact same words in the exact same speech rhythm. Coordination goes even further: Both of them can only control one arm and one leg - which means that even the simple act of walking or folding your arms is a synchronized effort. That's impressive. I sometimes even stumble with one brain that controls two legs.
Abby and Britt are no doubt a treasure trove for twin research. There was no realistic chance of ever separating them, both would have most likely died. That saved their parents from that horrible decision of sacrificing one child to save the other.
I wonder how they would play bass!
