A single infant is born after a gestation of five to six months.
Females had to be well nourished in order to bear their precious single infant every year.
According to the Centers for Disease Control and Prevention, in 1997, the pre-term rate for single infant births was 10percentt compared with 54.9percentt for twins and 93.6percentt for higher order multiples.
He was once a man of the left who wondered, when "thinking about the Jews," whether "their survival as a distinct group was worth one hair on the head of a single infant".
Mr Clegg said: "From the start of the next school year, every single infant school pupil will be able to sit down to a free school lunch".
Typically, a single infant is born.
Females typically give birth to a single infant once every two years, although births in consecutive years have been observed.
After a gestation period of about 145 days, she gives birth to either a single infant or twins.
A single infant or twins can be born, although it is not uncommon for one of the twins to perish within the first few months.
But to help shed some light on exactly what it would take for a single mother with a single infant and an hourly job to make ends meet without entitlements, I have composed this sample budget.
