. Advanced biology. Biology; Physiology; Reproduction. •V. y. Zoological Sac. N. y. Zoological Soc. baby does not begin to walk for a vear or more. Generally, we find that the higher the species the longer the infant depends on its parents for protection and nourishment. Infancy in man. In man, protection of the young is shown in the highest degree. Not only is there a long period of dependence of the baby upon the nourishment obtained from the mother's body before birth, but there is a long period of suckling after birth. The greatest care and protection are given the young during its infancy
. Advanced biology. Biology; Physiology; Reproduction. •V. y. Zoological Sac. N. y. Zoological Soc. baby does not begin to walk for a vear or more. Generally, we find that the higher the species the longer the infant depends on its parents for protection and nourishment. Infancy in man. In man, protection of the young is shown in the highest degree. Not only is there a long period of dependence of the baby upon the nourishment obtained from the mother's body before birth, but there is a long period of suckling after birth. The greatest care and protection are given the young during its infancy and childhood. As communities become more prosperous, there is a tendency on the part of the parent to postpone for each child the assumption of individual responsibilities. Among the different races of mankind, and even among diiTerent peoples of the same race, there is a great deal of variation with. A'. Y. Zooli/yuill S<n Note the length of infancy given in the table on the following Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wheat, Frank Merrill; Fitzpatrick, Elizabeth T. New York ; Boston [etc. ] : American Book Company
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