Having twins is based on probability. There is not a 100% chance you will have twins.
Yes babies can be called twins. Also when they grow up they"ll still be called twins.
A set of twins (2 babies) is called twins. Seven sets would still be twins. 7 babies born together (not twins) would be called septuplets.
Conjoined twins. The older terminology was Siamese twins, after the first recorded twins in the country of Siam (now called Thailand).
siblings
Cleopatra's twins were called Alexander Helios and Cleopatra Selene.
A set of seven twins is called septuplets.
Neptune and uranus are called twins. The Earth and Venus are called twins because of the similarity in size. See the related link for more information. The Earth and mars are not considered twins.
They are called: fraternal or dizygotic twins. Twins who develop in one amniotic sac are called identical or monozygotic twins.
the twins were thomson and thopson.
If they were not then they would not be called identical twins!
How do fraternal twins form? Answer one egg from each ovary is fertilized.