Chapter 12: Aging and Other Life History Characters
Explore key concepts and research through these links to additional web resources.
12.1 Basic Issues in Life History Analysis
From Purdue University, this part of the Interactive Fly site offers a detailed introduction to heat shock proteins and their various roles in fruit fly development and physiology.
Keywords: fruit fly, heat shock proteins, life cycle
12.2 Why Do Organisms Age and Die?
Aging Research Center (ARC)
The home page of the Aging Research Center provides many links to resources on the human biology of aging. Scroll to the bottom of the page to read articles about caloric restriction and the prolongation of life.
Keywords: aging, death, caloric restriction
Why Women Change
Biologist, Jared Diamond discusses the evolutionary significance of menopause in humans.
Keywords: menopause, natural selection, evolution
12.3 How Many Offspring Should an Individual Produce in a Given Year?
Michael Fox from Rutgers studies the evolutionary life history of the mummichog. Here you can learn about how one can study the reproductive allocation of these residents of the Atlantic coast marshes.
Keywords: mummichogs, reproductive allocation, life history
12.4 How Big Should Each Offspring Be?
Turtle Life History
At this website you can learn about the different research projects underway at the Janzen lab to study the life history of reptiles. Each link provides a description of the various projects and results.
Keywords: turtles, life history, offspring size
12.5 Conflicts of Interest Between Life Histories
Genetic level conflict between mates is reviewed in this article from Scientific American.
Keywords: imprinting, conflicting life histories, offspring
12.6 Life Histories in a Broader Evolutionary Context
Why Life After Menopause?
In this review from Science magazine, you can explore the hypothesis of natural selection favoring menopause through the study of the Hadza hunter-gatherers.
Keywords: menopause, 'grandmother theory', natural selection
Life History Analysis
Here you can read an analysis of life history from Brown University. This article explores the idea of optimizing the timing of reproduction with respect to a broader evolutionary context.
Keywords: life history, reproduction, evolution
Sea Urchin Tutorial
From the University of Wisconsin, this is a good on-line tutorial about sea urchin life history.
Keywords: life history, sea urchins, evolution