"Survival Of The Fittest" -- Pictured: Rachel Miner as Meg in SUPERNATURAL on The CW. Photo: Jack Rowand/The CW ©2012 The CW Network. All Rights Reserved.

"Survival Of The Fittest" -- Pictured: Rachel Miner as Meg in SUPERNATURAL on The CW. Photo: Jack Rowand/The CW ©2012 The CW Network. All Rights Reserved.