Talk:Parental investment

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Disambiguation from Bateman's principle[edit]

Trivers' PI theory here needs to be disambiguated from Bateman's principle Pete.Hurd 01:44, 18 August 2005 (UTC)

Done. Richard001 06:22, 13 July 2007 (UTC)


There needs to be a short, more clear and concise summery of this article.

That is, a lead section. Richard001 00:56, 13 July 2007 (UTC)

Human parental investment[edit]

And where's the article for human parents "investing" in their children's education, upbringing, helping them get started in business or society, etc.? I met a socialist politician once who vehemently objected to the idea that "parents who love their children more" could provide any advantages to them! --Uncle Ed 15:48, 25 January 2007 (UTC)

This is about evolutionary biology theory, and is a technical term often used. If you want to create something for humans, start from the parenting article and break it off into a new article if it gets large enough. Richard001 00:56, 13 July 2007 (UTC)

Parental investment as a subject of evolutionary psychology not evolutionary biology[edit]

Hence renamed it and added quite a bit to the article. — Preceding unsigned comment added by Teddykra (talkcontribs) 17:26, 22 December 2011 (UTC)

Why? It is a topic within the study of biology in general, not just within EP. People study parental investment in plants... — Preceding unsigned comment added by (talk) 17:14, 23 December 2011 (UTC)
Agreed. Parental Investment Theory, as proposed by Robert Trivers, is a highly influential principle in evolutionary biology in general, an one of the foundational principles of comparative animal behavior. Memills (talk) 02:38, 24 December 2011 (UTC)

How Evolution Ties In[edit]

The evolutionary changes of parental investment among species need to be discussed. Although the changes of offspring are discussed, as well as sexual selection, a specific evolutionary force, evolution should be mentioned and discussed in detail. Stuhlreyer.7 (talk) 12:50, 1 October 2014 (UTC)

Sexual Selection[edit]

At the end of the article's second paragraph, sexual selection is discussed and explained in detail - mentioning that in humans, there is competition among the males and selection among females because of females higher parental investment and goes on to explain that a female will chose a mate with the highest fitness and good genes- but sexual selection is not mentioned by name. Stuhlreyer.7 (talk) 13:25, 1 October 2014 (UTC)

It might be useful to add the importance of parental investment in terms of the survival of offspring. The way in which parental investment actually determines the amount of offspring that survive, and the fact that an individual can only reproduce successfully if they either access parental investment from someone else (male accessing it from female or vice versa), or expend it themselves. It would tie in nicely with what you wrote about human parental investment starting from where the sperm fertilizes the egg. (Rmwillis5 (talk) 10:45, 3 February 2016 (UTC))

Sexual selection and parental investment[edit]

This section discusses a lot of sex differences in parental investment but does not refer to them directly as sex differences. To change this, the title of the section could be renamed to 'sex differences in parental investment' to make it clearer what the following paragraphs are about and the sex differences can be explained using sexual selection. Hhammam (talk) 16:40, 1 February 2016 (UTC)

Mutual Choosiness[edit]

It would be useful to reference a source that defines the phrase mutual choosiness.This will make the article more accessible to anyone who has no prior knowledge on the topic as they would then have access to a source defining this phrase helping them understand this particular section of the article better.

EmPhillips (talk) 11:25, 3 February 2016 (UTC)

Adding in a reference or quote[edit]

I just think adding Steven Pinker's quote from 'The Blank Slate' summarises things nicely: "A male can get away with a few minutes of copulation and a tablespoon of semen, but a female carries an offspring for months inside her body and nourishes it before and after it is born." — Preceding unsigned comment added by (talk) 12:09, 12 February 2016 (UTC)