delinquent noun [C]. âº a âperson, usually âyoung, who âbehaves in a way that is âillegal or not âacceptable to most âpeople: âjuvenile delinquents.
Sahelanthropus may have walked on two legs. The oldest evidence for walking on two legs comes from one of the earliest humans known, Sahelanthropus. Walking upright may have helped this species survive in the diverse habitats near where it livedâincluding forests and grasslands.
Â© Copyright Evidence Based BirthÂ®. Please see disclaimer and terms of use. Researchers hypothesize that pushing in an upright position is beneficial for multiple reasons. In an upright position, gravity can assist in bringing the baby down and out.Also, when a woman is upright, there is less risk of compressing the motherâs aorta and thus a better oxygen supply to the baby. For women without an epidural, pushing in an upright position is associated with a decrease in the risk of episiotomies, vacuum and forceps-assisted deliveries, and fetal heart rate abnormalities, an increase in the risk of second-degree tears, and a possible increase in the risk of having blood loss more than 500 mL.