Question

what is the first humanities in world

Answer 1

The full, plump bosom seen in the human ape is an anomaly. No other primate has a permanent breast. During lactation all the ape species develop a full breast to store milk. In non-human primates (and other mammal species) a full breast is a clear indication the female is suckling young. Not so in humans. In addition, females in early adolescence can start developing a breast before menarche and females maintain breasts post menopause, so the full breast is not a reliable indicator of fertility. Neither is size an indicator of milk production – bigger breasts don't necessarily produce more milk. It is the symmetry of the breasts that indicates the phenotypic quality and fitness of the individual female, not the size.