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.
Stair Walking Benefits. Walking up stairs is about twice as intense as walking briskly on level ground and roughly 50 percent more challenging than climbing a steep slope, such as a hill. Even if you climb stairs slowly youâll burn two to three times as many calories as you would walking on a flat surface.