41. Twins For Life
When fraternal twins seem to run in a family, it’s because the women in that family release more than one egg during ovulation, increasing the chance of having fraternal twins. So, if your mom or grandma had fraternal twins, you might also have a higher chance of having them.

Identical twins happen by chance, while fraternal twins can be influenced by genetics, but only on the mother’s side. Understanding these differences can help us better grasp why some families have more twins than others.