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.
Turning your normal walk into a fitness stride requires good posture and purposeful movements. 1  Your head is up. You're looking forward, not at the ground. 2  Your neck, shoulders and back are relaxed, not stiffly upright.  You're swinging your arms freely with a slight bend in your elbows.