delinquent noun [C]. âº a âperson, usually âyoung, who âbehaves in a way that is âillegal or not âacceptable to most âpeople: âjuvenile delinquents.
Probably the major advantage of walking upright was that it freed the hands to use tools and carry (the pray). Another advantage is seeing further than on four legs, without the need to stop walking and raising oneself for a little while to look around ( like some animals do). Comments. Report.
Adam (if you are religious and believe in it)   or:   (if you follow the timelines of the earth and respect the hard working anthropologists) Homo erectus was the firstâ¦ to walk upright. B. Use tools.   While this is still a point of contention among researchers, there are a few leading theories.