PSYC 3280 Lecture Notes - Lecture 4: Weaning, Haplodiploidy, Kin Selection

81 views6 pages

Document Summary

Polyandry: odd because females have more invested in eggs than males do in sperm (females are usually the choosy ones) Jacanas- females lay a lot of eggs, and multiple males incubate them, build the nest and provide parental care (also seen in african wild dogs) 2: other fe(cid:373)ales (cid:449)ill atte(cid:373)pt to destro(cid:455) other fe(cid:373)ale"s eggs, a(cid:374)d (cid:373)ate (cid:449)ith the (cid:373)ale defe(cid:374)di(cid:374)g the other fe(cid:373)ale"s la(cid:374)d. Polygyandry: several males form pair bonds with several females at the same time. 3: benefits to females, females choose the highest quality mate, leading to the highest quality genes for the offspring, access to resources and protection from predation, sometimes gain access to shared parental care (other females help) In some situations, one animal might to something to increase the fitness of another animal at the expense of their own fitness (altruism) 4: some individuals sacrifice their own ability to reproduce to help their kin survive (pheromone of suppression by mother)

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