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W. D. Hamilton [13] was among the first to propose an explanation for natural selection of altruistic behaviors among related individuals. According to his model, natural selection will favor altruistic behavior towards kin when the benefit (as a contributing factor to reproductive fitness) towards the recipient (scaled based upon Wright's coefficient of genetic relatedness between donor and ...
The Omnivore's Dilemma: A Natural History of Four Meals is a nonfiction book written by American author Michael Pollan published in 2006. As omnivores, humans have a variety of food choices. In the book, Pollan investigates the environmental and animal welfare effects of various food choices.
Charles Darwin described both natural selection and sexual selection, and he relied on group selection to explain the evolution of altruistic (self-sacrificing) behavior. But group selection was considered a weak explanation, because in any group the less altruistic individuals will be more likely to survive, and the group will become less self ...
Research into food choice investigates how people select the food they eat. An interdisciplinary topic, food choice comprises psychological and sociological aspects (including food politics and phenomena such as vegetarianism or religious dietary laws), economic issues (for instance, how food prices or marketing campaigns influence choice) and sensory aspects (such as the study of the ...
First, optimal foraging theory relies on the assumption that natural selection will optimize foraging strategies of organisms. However, natural selection is not an all-powerful force that produces perfect designs, but rather a passive process of selection for genetically based traits that increase organisms' reproductive success.
Food psychology is the psychological study of how people choose the food they eat (food choice), along with food and eating behaviors. [1] Food psychology is an applied psychology , using existing psychological methods and findings to understand food choice and eating behaviors. [ 2 ]
Kira Jones, founder and CEO of the fitness app Cacti Wellness, tells Yahoo Life that sometimes the best motivation is a little treat — but that doesn’t have to mean a post-yoga class cupcake ...
The term natural selection is most often defined to operate on heritable traits, because these directly participate in evolution. However, natural selection is "blind" in the sense that changes in phenotype can give a reproductive advantage regardless of whether or not the trait is heritable.