What do you called sisters child?

A sister's child is called a niece or a nephew.

* Niece: A sister's daughter

* Nephew: A sister's son

  • The average birth weight of twins varies depending on whether they are identical or fraternal.* Identical twins: Typically weigh around 5 pounds (2.3 kg) each.* Fraternal twins: Typically weigh around 4.5 pounds (2 kg) each.Its important to note tha
  • The highest number of children birthed by one woman is 69, according to the Guinness World Record. This was achieved by Feodor Vassilyev, a Russian peasant who lived in the 18th century.Important Note: This is a historical record and should not be in
  • Its a common misconception that baby boys are born with a set number of sperm. The truth is, baby boys are born with sperm cells in their testicles, but they are not yet mature and capable of fertilization. Heres the breakdown:* Sperm production: Spe