ANTHRO 1 Lecture Notes - Lecture 19: Life History Theory, Gestation, Infant Mortality
9 Mar 2018
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Ex: stature getting taller over the last century b. c. d. e. But we do see decreased growth velocity where there is diet or pathological stress. See growth retardation in prehistoric populations with shift to agriculture. Most populations show reduced retardation in longitudinal growth for given chronological age -- response to environmental stress, but will catch up in adulthood. An organism has a limited amount of energy for investment in its life course. There is a continual tradeoff in energy investment among life history traits, and natural selection shapes these tradeoffs. This can help us understand many aspects of the life cycle. However: cultural factors can play a big role in life history traits. Human life cycle is different i. ii. iii. iv. Monkeys, apes, and humans have added the subadult (adolescent) phase. Humans are unique among primates in that our life stages are determined by biological and cultural changes. Common in most mammals and in all primates ii. iii.
