Half of all twins in Africa

It is true that nearly half of the world’s twins are born in Africa. The small West African nation of Benin has the highest concentration of twins in the world while Japan has the lowest rate of twinning.

The researchers found that Benin had a rate of 27.9 twins per 1,000 births. The global average among the countries surveyed was 13.1 twins per 1,000 births.