Identical Twins

anonymous asked:

(Perchy) I also headcanon Laf & Thomas as being identical twins separated at birth & adopted to diff families. Laf adopted by two French aristocrats, Thomas by a couple (father a lawyer, mother a DJ) in America. They both end up befriending Alex separately and one day Alex sees Thomas perching on the counter with his hair tied up n thinks "hmm... thats so familiar. where have i seen it. oH SHIT LAF DOES THAT TOO. WAIT WHA- THEY LOOK ALIKE TOO" and that's how Laf and Thomas find out they're twins

how awkward is that,, u realizing ur best friend looks exactly like someone who ur sleeping around with 😂😂😂

anonymous asked:

You ever wonder how often it happens that identical twins unknowingly trade identities during infancy? Like, an exhausted mother accidentally dresses them in the wrong outfits or tucks them into the wrong cribs one day, and the mistake just never gets caught?

So what you are saying is…I could be Stanley? 


anonymous asked:

hi! i was wondering if you could tell us more about the princesses? like what they're like and stuff o:

Oh, of course! I only have rough ideas of their personalities because I figured their owners after the event would want to develop them in their own way. 

Taanyth, the eldest, views herself as possessing the most responsibility. She was groomed by her mother to act as the strongest, the most dutiful of the three girls. She is close with the twins (though not as close as they are with each other) and so she doesn’t view them with any disdain for not having less responsibility on their shoulders.

Lohnai, the middle child, is sympathetic towards her elder sister. She sees Taanyth as the odd one out of the three of them, the only pearlcatcher of the bunch whereas the other two are guardians, and identical twins to boot. As middle child, she was given neither lenience nor excessive discipline, falling exactly between Taanyth and Ilanei in terms of endearment from their mother.

Ilanei, the youngest, tries to be as responsible as her eldest sister, not willing to live slightly easier due to her status as the last born of the three. She and Lohnai often talk about how Taanyth has the most burden and in turn Ilanei attempts to take some of that duty off of her sister’s shoulders. As a child, she tried more often to find solace in her mother than either of the other two did.

All three of them are incredibly obedient and respectful of their mother, knowing that she expects great things from them and their noble blood. I think I’ll leave their feelings as to the marriages and duties expected of them up to the people who get them once the event is over!


Types of Twins

Twins are more complex than just “identical” and “fraternal”!

Fraternal (or Sororal) Twins

When two eggs are released by the mother, and both are fertilized and implant successfully, two completely different gene sets develop into a fetus. The two eggs almost always develop their own placenta, and their own amniotic sac. These are scientifically known as dizygotic (di - two, zygote - egg) twins, and there’s a genetic basis to whether a female is predisposed to have them.

Identical (Monozygotic) Twins

When only one egg is released and fertilized, there’s a chance of identical twins forming. Unlike fraternal twins, there’s no genetic basis for the formation of identical twins, so it’s uncommon for families to have multiple sets of them. There are several types of monozygotic twins:

  • Dichorionic-Diamniotic Twins (DiDi)
    These twins have two (di-) chorions (which means they also have two placentas) and two amniotic sacs. They occur when splitting of the fertilized egg (embryo) occurs less than 72 hours after fertilization. Fraternal twins are also considered “DiDi”. Around 25% of identical twins are DiDi. These twins have the lowest mortality rate, at about 9%.

  • Monochorionic-Diamniotic (MoDi)
    These twins have one (mono-) chorion (meaning one placenta), but two amniotic sacs. This occurs when the embryo splits between 4 and 8 days after fertilization. Because they only have one placenta, there’s a risk of twin-to-twin transfusion syndrome. Between 60-70% of identical twins (and about 0.3% of all pregnancies) are MoDi.

  • Monochorionic-Monoamniotic (MoMo)
    “MoMo” twins share both their chorion and amniotic sac. They make up about 1-2% of all monozygotic pregnancies, and occur when the embryo splits between 9-12 days after fertilization. They have the highest mortality rate of all monozygotic twin pregnancies, with only 50-60% surviving to birth. In addition to twin-to-twin transfusion syndrome, the risk of one or both fetuses becoming entangled in the umbilical cords and cut off from nutrition can lead to significant disability even when both babies survive.

  • Conjoined Twins
    When twins separate later than 12 days after fertilization, the split is very rarely complete, and conjoined twins occur. In general, the later the split, the less complete the split is. They have the highest mortality rate among twin pregnancies.

“Mirror Twins”

When MoMo twins split between the 10th and 12th day after fertilization, they often develop into “mirror twins” - that is, they’re the inverse of one another. Things like dominant handedness (left vs right-handedness), dominant eye, dental development, and even the direction of their organs inside their body can be reversed. Not all MoMo twins that split during  this time period are “mirror”, but many are.


The Practice of Obstetrics. Edited by Charles Jewett, 1901.

See also:

Conjoined female twins in the Nuremberg Chronicles. By Hartmann Schedel, 1440-1514.

Placentation diagram by Kevin Dufendach at Wikipedia

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