That is a screen cap of Pharyngula featuring an image from 300. In other words, Man Beard PZ is pimping Man Beard Leonidas. That is some highly concentrated Man Beardity. In honor of this event, Man Beard Blog offers this humble poem.
May your beard always bristle.
and your balls always hang low.
May your weapon always drip with fresh blood.
and your blog always be updated with creative brilliance.
May your kings provide you with bounty before you slaughter them
unless your king is King Leonidas, in which case may he slaughter you mercifully.
May every day be like today
where Man Beards love each other freely.