Twin vs Těně

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Twins are two offspring produced by the same pregnancy. Twins can be either monozygotic ('identical'), meaning that they develop from one zygote, which splits and forms two embryos, or dizygotic ('non-identical' or 'fraternal'), meaning that each twin develops from a separate egg and each egg is fertilized by its own sperm cell.

In contrast, a fetus that develops alone in the womb (the much more common case, in humans) is called a singleton, and the general term for one offspring of a multiple birth is a multiple. Unrelated look-alikes whose resemblance parallels that of twins are referred to as doppelgangers.

Source: Wikipedia

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Těně is a village and municipality (obec) in Rokycany District in the Plzeň Region of the Czech Republic. The municipality covers an area of 4.9 square kilometres (1.9 sq mi), and has a population of 248 (as at 3 July 2006).

Těně lies approximately 15 kilometres (9 mi) east of Rokycany, 30 km (19 mi) east of Plzeň, and 59 km (37 mi) south-west of Prague.

Source: Wikipedia