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.
Many models can be easily folded and put away for later use. Ultimately, both upright bikes and recumbent bikes can offer great opportunities for exercise. Since the seat on an upright bike is similar to the seat found on a road bike, it can be an uncomfortable option for those who want to enjoy a longer workout.