He stuck his head in the sand and deliberately avoided knowing what would have been obvious. We don't need to prove why.

did not rise to the level of specificity or gravity that would require the court to take action.

The defendant must have figured out Ressam planned to bomb something in the United States.

We're not asking you to give them a reward for good citizenship, ... Believe their testimony.

If you were a human sperm, there is no prize for coming second.

Conversation became strained as they each waited for a sign that they would not be rebuffed.

Since the aim of masturbation is to give the male an edge over others in sperm warfare, he gains most if he masturbates but can dissuade those around him from doing so. That way, he gains competitive benefits that his rivals do not. The world-wide tendency to criticise, even victimise, other people for masturbating while continuing to masturbate oneself is thus as strategic as masturbation itself.

The more men and women drink, the more they both seek intercourse — or, at least, the less they resist it.

Lion prides contain two or three males and up to eight females and their young. Wandering over the savannah are bachelor groups of two or three males, each group looking for a pride from which they can oust the current males. If they succeed, the first thing they do is kill the cubs, the pride's legacy from the previous males.

A woman's difficulty is that she has a much wider choice of men to provide her with genes than she has of long-term partners. She could probably persuade many men of her choice to give her their genes — it takes only a few minutes of sex, after all. Her options for a long-term partner, though, are much more limited.