The twin birth rate in United States achieved a record high in 2014, according to an annual report published by CDC on Wednesday
A new study is claiming that climate change is a contributor to the decline in the U.S. birth rate.
Over the past few years, the rate of babies born to unmarried women younger than 35 has declined, a new federal report found.
For the first time in five years, the U.S. birth rate has starting increasing.
The world population could reach almost 11 billion by 2100 because of soaring birth rates in Africa, according to a new United Nations report released on Thursday.
When the number of men in a poor area goes down, women become less choosy and start giving birth to more children, according to a new study from Britain. Women belonging to more affluent classes react to shortage of men differently, like pursuing a degree or focusing on career.