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.
Legs that fold down compactly allow for convenient travel and storage. The modern lifestyle makes it far too easy to ignore the body's need for an upright position. Sit-to-stand desks provide an easy and convenient way to change positions and relieve some of the stresses that a seated job can cause.