Howling:Are the Cybermen becoming smarter?

In the new trailer it shows a cyberman picking up it's own head, now with the head containing the brain which is the most important thing for the cyberman to still be alive does this mean the cybermen have created a way to keep themselves indistructable in a way?? More proof is the cyberman without an arm. -- Michael Downey 16:55, April 6, 2010 (UTC)