twin, n.Trivia

Armadillos have four babies at a time which are always all the same sex.

Smell is unique for all people, except identical twins.

Twins come in seven different types: Identical, fraternal, half-identical, mirror image, mixed chromosome, superfetation and superfecundation

Nine-banded armadillos always have quadruplets, and they’re always identical.

Twins are born in Benin at more than double the International rate (30 twins per 1,000 births), likely due to a combination of factors including genetics, diet, and the mothers' height.

Elvis Presley had a twin brother who died at birth.

Identical twins are sometimes acquitted of crimes even though one of them is a definitely guilty since identical twins have almost identical DNA and legal system cannot afford to punish the wrong twin for the crime.

Twins are interesting --- The offspring of two identical sets of twins are legally cousins but genetically siblings.

Twins can be told apart by their navels since the navel is a scar with unique characteristics

Twins are not always born on the same day --- the longest interval between the birth of twins was approximately 90 days

Daylight savings time has resulted in a twin being born later but also earlier

Twins are often linguistically inventive --- 40% of twins invent their own language.

Identical twins were suspects in a $6.8 million jewelry heist, but they had to be released because DNA evidence proved that at least one brother took part in the crime but it could be determined which one.

Twins have a very high occurrence of left handedness.