Yes, I’ve read several studies. But for legal purposes, a person whose corpus colossum is cut does not become two people. There is a difference between arguing a divided individual personhood and arguing two seperate people. Just because the right brain can make the left hand move does not mean it is a whole person. There is still only one brain stem, and one frontal lobe.
This cat appears to have only one of each.
The Hensel twins have two of each. I’ve always wondered how the control of autonomic functions is organized in such cases.
To answer a factual question (grin…) YES! Way too squicked!
The San Diego Zoo has a two-headed snake on display… It always makes me queasy to see, so I generally look the other way… My paw took me to an old-fashioned circus freak show when I was a youngker: one of the more horrid experiences of my life. (Even though some of 'em were so obviously fake, even a kid could see it!)
“The animal can see out of only two of his three eyes. The middle one can’t even blink and makes Frank and Louie appear to be staring even when his other eyes are closed.”
As already noted, apparently in this cat the problem is “solved” by only one eye having vision.
That could be due to the nerves not being correctly “wired” or connected to the brain. On the other hand, when a brain gets confusing sensory information it can start ignoring the input from one (or, in this case, more) eyes to reduce the confusion - this can happen in amblyopia or “lazy eye” that is left untreated.
You aren’t the only one.
The Hensels have never volunteered for medical research and apparently have no interest in doing so, in their case we might never know. Which is entirely their right, I don’t think our curiosity trumps their right to privacy or determine boundaries. Long-living dicephalic conjoined twins are rare no matter where you look. Interestingly, such twins like the Hensels do seem able to coordinate their motions, walk, run, and so forth (there have been prior instances surviving to adulthood) but conjoined twins joined at the chest/sternum, basically have four arms but one body from the wast down, usually don’t. Of course, we’re working from a very small pool of samples, most of which are known from scanty historical records.