Examine one evolutionary explanation of behavior
The theory of
evolution, suggested by Charles Darwin, is based on the assumption that living
organisms face environmental challenges. Organisms that adapt the best have a
greater chance of passing on their genes to the next generations.
Organisms with specific genetic traits that enhance survival are said to be
naturally selected. Natural selection is a crucial evolutionary process in
evolutionary explanation of behavior: disgust in pregnant women
loss of appetite during pregnancy may have been evolved as a way to protect
the mother and the fetus against diseases which could threaten the fetus.
Disgust has evolved as a food-rejection response to prevent contamination
and the spread of illness.
under investigation is whether disgust has evolved to compensate for the
mother and the baby’s vulnerability to disease during the first few months
Study to use:
Fessler et al (2005)
difficult to test evolutionary theories and not much is known about the life
of early humans.
explanations tend to focus on biological factors and underestimate cultural