bABIES

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WHY ARE THERE TWIN BABIES IN THE WORLD

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updated SEP 21, 2008
posted by Yosman-Alleyne

2 Answers

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lazarus1907 said:

Because sometimes the egg splits after being fertilized, or two fertilized eggs are placed in the uterus at the same time.


P.S. the former case results in identical twins and the latter in fraternal twins.
P.P.S. Despite the origin of the word "fraternal", they are siblings (not necessarily male children)

updated SEP 21, 2008
posted by samdie
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Because sometimes the egg splits after being fertilized, or two fertilized eggs are placed in the uterus at the same time.

updated SEP 21, 2008
posted by lazarus1907