Evolutionary psychology is an attempt to explain human behavior in terms of the evolution of our ancestors. While I do not doubt that who our ancestors were and what they did influence us today, I find many of the "findings" of evolutionary psychology to be hilarious. For example, see this explanation of why men go bald or this essay for a hilarious skewering of some of the claims of evolutionary psychology.
The latest example I, truthfully, had a hard time believing. I mentally double-checked that it wasn't April 1st. But, no, it's real. A psychologist now has an answer for one of the larger questions in life: why do old men dance so poorly at weddings? See his answer here.
Thankfully there seem to be a growing number of people who are properly skeptical of such claims.