Puberty

Girls begin puberty around the ages of ten to eleven, and boys around the ages of eleven to twelve.

The body changes a lot during puberty.

Adolescence is the stage between puberty and adultery.

From a social perspective, menarche is typically considered the central event of female puberty - but menarche does not necessarily signal that ovulation has begun occurring.

Sami was sixteen and he was still going through puberty.

Sami was going through puberty.

Tom is going through puberty.

Puberty is the time when boys and girls don't know whether to hit or kiss each other.

The young giraffe male reached puberty and was expelled from the herd.

Inwardly the Second Men differed from the earlier species in that they had shed most of those primitive relics which had hampered the First Men more than was realized. Not only were they free of appendix, tonsils and other useless excrescences, but also their whole structure was more firmly knit into unity. Their chemical organization was such that their tissues were kept in better repair. Their teeth, though proportionately small and few, were almost completely immune from caries. Such was their glandular equipment that puberty did not begin till twenty; and not till they were fifty did they reach maturity. At about one hundred and ninety their powers began to fail, and after a few years of contemplative retirement they almost invariably died before true senility could begin.