One of two offspring produced in the same pregnancy. Use with P31 on items for one twin

Twin (Under CC License)

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 ('fraternal'), meaning that each twin develops from a separate egg and each egg is fertilized by its own sperm cell.

Twin News and Videos   LIVE

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