As speculations about the
gender of Prince William’s and Kate's baby reach a fever pitch in the
final days before the duchess’s due date, scientists are also chiming in and
Their wager? That it’s a girl.
For one, they say, the sex of a child isn’t entirely up to chance. Consider
slightly more boys are born total—105 to 106 boys for every 100 girls. But from
there, what a pregnant woman eats can also give clues.
one study, Fiona Mathews, director of the program in biosciences and animal
behavior at the University of Exeter in the United Kingdom, polled 740 women
about their diets early during their pregnancy. Those who ate more calories
were more likely to deliver a boy instead of a girl.
happen because male embryos develop faster in the womb, and may therefore need
more food. “What we seem to get is this general idea that when conditions are
really favorable, then that male embryo can survive and can keep developing,”
Mathews told CNN.
“Whereas maybe when conditions are a bit tighter—less nutrients are available—then it’s only the female embryos that manage to survive.”
also play a role. For instance, according to Mathews, more females are born
during times of crisis like earthquakes and other natural disasters. Women with
stressful jobs are more likely to have a girl as well.
Last but not
least, consider the father’s job. One study in the journal Norsk Epidemiologi found that airline pilots are more likely to
have girls instead of boys.
None of this is a definite crystal ball into a royal future, but we guess we'll see pretty soon who's right.