纵观广阔的自然界,只有人类女性才具有隆起的乳房这一特征,而诸如猴子、狗等许多动物,只有突出的乳头而没有隆起的乳房。这是为什么呢? 人们通常认为,隆起的乳房是母亲的象征。因为女子一旦受孕,乳房将会更加 Looking at the vast natural world, only human females have the characteristic of bulging breasts, while many animals, such as monkeys and dogs, have prominent nipples and no raised breasts. Why is this? People generally think that the uplift of the breast is a symbol of the mother. Because the woman once pregnant, the breast will be more