LONDON (Reuters) - Growing into a fully formed human
being is a long process, and scientists have found that unborn babies
not only hiccup, swallow and stretch in the womb, they yawn too.
Researchers who studied 4D scans of 15 healthy fetuses
also said they think yawning is a developmental process which could
potentially give doctors a new way to check on a baby's health.While some scientists have previously suggested that fetuses yawn, others disagree and say it is nothing more than a developing baby opening and stretching its mouth.
Thanks Yahoo Canada
http://ca.news.yahoo.com/4d-scans-show-fetuses-yawn-womb-230336359.html