PSYCH 178 Lecture Notes - Lecture 3: Sociobiology, Sockeye Salmon, Cloning

53 views2 pages
4 May 2014
School
Department
Course
Professor

Document Summary

Altruism why does it exist: you would sacrifice yourself to save your offspring if there is more genetic gain than cost in doing so. It is not the survival of the self but the survival of the gene pool. Characteristics that reduce survival chances 2nd challenge of classical theory: peacock feathers are not in service of individual survival. This is built into their genes: some males sacrifice their life so that they can father more offspring with the female. He will die eventually, so he might as well sacrifice it to increase his chances of passing on his genes: sockeye salmon migrate back to where they were hatched, despite the dangers on the way. Although they are exhausted, they have to fight for mates: cloning is a way of reproducing without having sex. This means that both the offspring are genetically identical.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents