[Faline]

A parasitic twin (also known as an asymmetrical or unequal conjoined twin) is the result of the processes that produce vanishing twins and conjoined twins, and may represent a continuum between the two.[citation needed] Parasitic twins occur when a twin embryo begins developing in utero, but the pair does not fully separate, and one embryo maintains dominant development at the expense of the other. Unlike conjoined twins, one ceases development during gestation and is vestigial to a mostly fully formed, otherwise healthy individual twin. The undeveloped twin is defined as parasitic, rather than conjoined, because it is incompletely formed or wholly dependent on the body functions of the complete fetus. The independent twin is called the autosite.http://en.wikipedia.org/wiki/Parasitic_twin

[reubthadude]

Those always intrigued me

[Shakey]

Picture of a loser.

[ralucagymnast]

Originally Posted by reubthadude ↗

Those always intrigued me

Me too!!!! They are fascinating, creepy, freaky all rolled into one!!

[ralucagymnast]

Oh shit, I meant to add 5 stars to rate the thread, not one!!!How do I undo it????????

[Faline]

Originally Posted by ralucagymnast ↗

Oh shit, I meant to add 5 stars to rate the thread, not one!!!How do I undo it????????

Mods can see the star rating, I removed it for you

[HeadlessHorseman]

AAW little brother, there you are.

[DOLL]

Some win, some loose.

[Pigeon]

Creepy little teeth

[blancadon]

Nice post Kelly!