Psychology

Why do baby sharks, hyenas, and pelicans kill their siblings? Why do beetles and mice commit infanticide? Why are twins and birth defects more common in older human mothers? A Natural History of Families concisely examines what behavioral ecologists have discovered about family dynamics and what these insights might tell us about human biology and behavior. Scott Forbes's engaging account describes an uneasy union among family members in which rivalry for resources often has dramatic and even fatal consequences.

In nature, parents invest resources and control the allocation of resources among their offspring to perpetuate their genetic lineage. Those families sometimes function as cooperative units, the nepotistic and loving havens we choose to identify with. In the natural world, however, dysfunctional familial behavior is disarmingly commonplace.

While explaining why infanticide, fratricide, and other seemingly antisocial behaviors are necessary, Forbes also uncovers several surprising applications to humans. Here the conflict begins in the moments following conception as embryos struggle to wrest control of pregnancy from the mother, and to wring more nourishment from her than she can spare, thus triggering morning sickness, diabetes, and high blood pressure. Mothers, in return, often spontaneously abort embryos with severe genetic defects, allowing for prenatal quality control of offspring.

Using a broad sweep of entertaining examples culled from the world of animals and humans, A Natural History of Families is a lively introduction to the behavioral ecology of the family.

For three fascinating, disturbing years, writer Patricia Hersch journeyed inside a world that is as familiar as our own children and yet as alien as some exotic culture--the world of adolescence. As a silent, attentive partner, she followed eight teenagers in the typically American town of Reston, Virginia, listening to their stories, observing their rituals, watching them fulfill their dreams and enact their tragedies. What she found was that America's teens have fashioned a fully defined culture that adults neither see nor imagine--a culture of unprecedented freedom and baffling complexity, a culture with rules but no structure, values but no clear morality, codes but no consistency.

Is it society itself that has created this separate teen community? Resigned to the attitude that adolescents simply live in "a tribe apart," adults have pulled away, relinquishing responsibility and supervision, allowing the unhealthy behaviors of teens to flourish. Ultimately, this rift between adults and teenagers robs both generations of meaningful connections. For everyone's world is made richer and more challenging by having adolescents in it.

The bestselling author of Quantum Healing and Perfect Health combines ancient mind/body wisdom with current anti-aging research to show that the effects of aging are largely preventable. With the passage of time, it is possible to retain physical vitality, creativity, memory, and self-esteem.