
http://www.nbc10.com/health/9515335/detail.html
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Protracted mitosis (or possibly meiosis, I always seem to mix these two up!) in the initial stages of development in the head area. Common in most animals, but rarely so pronounced as to produce visible signs, except in the cases of twins (separate and conjoined).A kitten has been born with two faces and veterinarians don't understand why.
At least the two middle eyes will be blind as, due to the significantly larger cranium, the heart not be able to sustain the nutritional needs of all four eyes in terms of oxygen flow (blood, essentially).The kitten was born Wednesday morning in Ohio. It has two mouths that meow in unison, two noses and four eyes that have not opened yet.
It will need a significantly different dietary intake in order to sustain itself, resulting in a slightly smaller body than its siblings. It may not have as long a natural lifespan as its siblings either, due to the increased strain on its heart.Veterinarians say this occurrence is very rare, but the kitten could be just fine. It has already begun nursing just like the other kittens in the litter.
There's a museum in Amsterdam that does the same thing but with humans. I've not been, but it's a fascinating concept to me, and I think it helps explain a lot of early myths such as the cyclops, trolls and other "semi-human" creatures that were said to exist, usually in "far-off" lands. I think it also probably explains the medieval ideas that some women were witches and slept with the devil by night, sometimes without being aware of it. If a proud husband and wife gave birth to a baby with two faces, what other explanation could there be? Equally, of course, this sort of thing must happen every so often in a hospital ward somewhere in the world. Ultrasound and other scans can catch it where such procedures available, but in places where the facilities are rare, expensive or stretched, rather than routine, anything's possible. Something to think about before engaging in the old sperm-egg dance, anyway.Rebis wrote:A sad curiosity in a museum will probably be its fate.