Extinction or Extermination? by Sarah Stegall Copyright 1999 by Sarah Stegall. All rights reserved. “I’m dying, you idiot.” — Fox Mulder to the Cigarette-Smoking Man “Biogenesis” written by Chris Carter and Frank Spotnitz, directed by Rob Bowman. “The Sixth Extinction” written by Chris Carter, directed by Kim Manners. “The Sixth Extinction: Amor Fati” written by David Duchovny and Chris Carter, directed by Michael Watkins. Something really is in danger of dying on The X-Files, and it’s not just Fox Mulder. The last episode of the sixth season of The X-Files (“Biogenesis”) started with the most visually stunning opening sequence I…