Revisited: Why Are Spree Killers Mostly Men?

How Elliot Rodger's Writings Stunningly Mirror the Ultimate Causality of Rampage Killing

Adaptationism as an Integrating Meta-Theory in Psychology

More dialogue and debate about evolutionary psychology as a foundational, integrative meta-theory for psychology.

How to Really "Get" Evolutionary Psychology

If a tree falls in a forest, and there is no one around, does it make a sound? Most folks think that the answer to this question is open and debatable. It isn't. There is a right answer and a wrong answer.

Running Amok: Why Are Virtually All Spree Killers Men?

After the recent Sandy Hook Elementary School massacre of innocents, a friend of mine posted this question to his Facebook page: "Once again, we miss the obvious. It is boys and men who shoot, not girls and women! Mental illness aside, what is it about boys, men, and masculinity?"

A 'Periodic Table' of Human Psychological Adaptations

Is something like a Periodic Table of Human Evolved Psychological Adaptations a possibility?

Why Most "Sex Differences Experts" Actually Aren't

The "Is This Person Really a Sex Differences Expert?" Test. Some questions you can ask to discover how much expertise a purported expert really has.

How to Avoid Population Overshoot and Collapse

Like all other species, we have no evolved psychological adaptations specifically designed to prevent ecological overshoot and population collapse. One way to promote sustainability may be to collectively consent to a publicly supported media campaign to tweak our psychological adaptations.

Playing the Anti-Evolutionary Psychology Game

The majority of climate scientists believe that the evidence supporting anthropogenic climate change is overwhelming. So can you imagine how frustrating it must be for them to repeatedly hear the mis- and dis-information about their discipline from climate change deniers? Evolutionary psychologists too face similar uninformed criticisms.

Sex Difference vs. Gender Difference? Oh, I'm So Confused!

A gender difference is due to nurture, and a sex difference is due to nature, right? Let me argue that these nature vs. nurture distinctions are deeply misleading. And, I'll propose a possible way out of the terminological confusion...

Why Men Behave Badly: Causality vs. Morality

Many of the recent discussions about "men behaving badly" have been confounded by attempts to simultaneously understand the phenomenon and condemn it. But like oil and water, causality and morality often don't mix well. If we wish to reduce behavior that we find morally objectionable, having an accurate understanding of why it occurs is an essential first step.

The Two Professions that Get to Tell the Truth: Scientists and Humorists

Someone once said that there were only two professions that can be relied on to tell the truth: scientists and humorists. Both can challenge our worldviews, criticize our most cherished beliefs, remind us of unpleasant truths, and stretch the limits of common courtesy. Both can be provocateurs.

When Did Evolutionary Psychologists Stop Beating Their Wives?

The recent post by Dr. Darcia Narvaez criticizing evolutionary psychologists was exemplary, but not in a good way. It was a fairly typical example of how many self-appointed critics of evolutionary psychology often end up embarrassing themselves by betraying a stunning ignorance of the discipline.

Why Don't Women Ask Men Out on First Dates?

After decades of increasing gender equality, why are women still not making the first move by asking out men on first dates?

Wrong Question: Is It Nature or Nurture?

Some social scientists apparently still haven't heard the news about the nature vs. nurture debate. It is over. Good riddance. It was a dead-end path to nowhere.

Which Sex is Playing a Higher Stakes (Reproductive) Game?

Some guys have all the luck. Some guys have all the pain.

How Can There Still Be a Sex Difference, Even When There Is No Sex Difference?

The "genetic mosaicism" of women's brains may lead to an interesting sex difference that spans many different traits: men show more within-sex variability than do women.