Thanks to the Uncommon Descent blog for its post, Darwin’s natural selection explains why we don’t see space aliens.

Here’s a bit that tells you all you need to know about the scientific merit of this explanation for why we haven’t found ET (and perhaps how clear-minded Seth Shostak is):

“This is an interesting idea,” says alien hunter Seth Shostak of the SETI institute in Mountain View, California. “If I let the cosmos know I exist, then I might be subject to extermination

Good grief.