these wolfs are summoned by grimtotems that spawn in Dustwallow Marsh. These wolfs only last seconds which obviously, with normal tame is impossible to do.

Solution
you gotta stack up with as much -cast time crap as you can. get war drums, find yourself a shammy for heroism, troll racial (if you are one), and the biggest help is the mystic skyfire diamond.

Process...
use a macro to target one of these things cause every second is valuable. FIRST spam aspects to get the meta gem to proc, have your shammy pop heroism and throw down drums, etc. this all involves alot of luck due too the proc of the gem has to happen when the wolf is actually summoned.

this has been done several times so it is possible. the pets wont be tamable for long so get yer tries in while possible GOOD LUCK.