Sex Differences in Parental Investment

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1. What did Werner and Lotem find?

  • Male Cichild fish will choose the largest female as they are more likely to produce the largest eggs
  • Men don't discriminate in the way they treat their biological children and step children
  • Male Orb-weaving spiders are more likely to choose larger females when competition is high
  • Men who don't have full parental uncertainty will spend less time with offpsring
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2. Why are women less jealous than men in relationships?

  • Men are more paranoid about infidelity
  • Women have full parental certainty, whereas men don't have full parental certainty so this may lead to cuckcoldry and wasting their resources on another man's child so to stop infidelity and therefore cuckcoldry they act jealous as to stop it
  • Women are more understanding than men

3. What did Anderson (1999) find?

  • Men are more negatively affected by sexual infidelity as shown by physiological tests and self-reports
  • Men don't discriminate in the way they treat their own biological children and their partner's children from a previous relationship
  • Male cichild fish prefer largest females as they can produce more eggs
  • Men who are unsure of their parental uncertainty will spend less time with these offspring?

4. Which study found that men who are unsure of their parental uncertainty will spend less time with these children?

  • Bellis et al.
  • Anderson (2007)
  • Anderson (1999)

5. Which study found that men were more negatively affected by sexual infidelity and women were more affected by emotional infidelity as shown by physiological tests and self reports?

  • Buss et al.
  • Anderson (2007)
  • Willerman
  • Anderson (1999)

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