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  2. Superfecundation - Wikipedia

    en.wikipedia.org/wiki/Superfecundation

    In 2019, a Chinese woman was reported to have two babies from different fathers, one of whom was her husband and the other was a man having a secret affair with her during the same time. [12] In 2022, a 19-year-old Brazilian from Mineiros gave birth to twins from two different fathers with whom she had sex on the same day. [13]

  3. Mixed twins - Wikipedia

    en.wikipedia.org/wiki/Mixed_twins

    In such cases, fraternal twins can differ from each other quite dramatically in terms of skin color or other physical characteristics. Numerous sets of mixed twins have been born. [1] [2] [3] Much more rarely, mixed twins can arise as a result of heteropaternal superfecundation. [4] [3]

  4. Twins and handedness - Wikipedia

    en.wikipedia.org/wiki/Twins_and_handedness

    If the parents are both right-handed, in dizygotic and monozygotic twins there is a 21% chance of one being left-handed. If one parent is left-handed, in DZ and MZ twins there is a 57% chance of one being left-handed. If both parents are left-handed, it is almost certain one twin will be left-handed. [citation needed]

  5. 111 Of The Rarest Genetic Mutations Ever That People ... - AOL

    www.aol.com/lifestyle/111-rarest-genetic...

    He’s only 7 months old at 5.5lbs and will only grow wider. Thicc boy. He has shakes and tremors without any seizures, so we know there’s an underlying neurological issue.

  6. Twin and triplet births are on the decline. Here's how it ...

    www.aol.com/twin-triplet-births-decline-heres...

    Triplet and higher multiple births nosedive. In 2004, of the people younger than 35 who gave birth with the help of IVF, 32.7% delivered twins, and 4.9% delivered triplets, according to doctors at ...

  7. Waardenburg syndrome - Wikipedia

    en.wikipedia.org/wiki/Waardenburg_syndrome

    If two individuals with a mutation in this gene (heterozygous) have a child carrying both mutations , for which there is a 25% chance, additional symptoms are present in the child, such as a hole in the iris , small eyes (microphthalmia), hardened bones (osteopetrosis), macrocephaly, albinism and deafness.

  8. Alabama woman with rare double uterus is expecting a child in ...

    www.aol.com/news/alabama-woman-rare-double...

    The couple are already parents to three children, ages 7, 2 and 2. Hatcher, who has two uteri that each have their own cervix, discovered she was pregnant in the spring.

  9. Parasitic twin - Wikipedia

    en.wikipedia.org/wiki/Parasitic_twin

    The twin reversed arterial perfusion, or T.R.A.P. sequence, results in an 'acardiac twin', a parasitic twin that fails to develop a head, arms and a heart.The parasitic twin, little more than a torso with or without legs, receives its blood supply from the host twin by means of an umbilical cord-like structure, much like a fetus in fetu, except the acardiac twin is outside the autosite's body.