On average, around 12,000 sets of identical twins are born each year in the UK.
one but there can be twins or triplets
If you are asking about each birthing, one. Twins are not impossible but very rare.
On average, about 33 pairs of identical twins are born per 1,000 births in the United States, which translates to around 33,000 pairs of identical twins each year.
One chimp baby at each pregnancy is normal. Twins happen, but very rarely.
As of 2006, on average there were over 137,000 twins born in the U.S. every year.
Identical twins occur in about 3.5 out of every 1,000 births in the United States. It is estimated that around 32 out of every 1,000 births are twins, with identical twins making up about one-third of all twin births.
2
Usually one baby monkey is born to the monkey.
Each pregnancy usually results in a single baby after about 7.5 months. Twins happen but are very rare.
1000
Not very far. They border each other.