Pre-Cataclysm effects on patch 3.3
Looks like Cataclysm is already starting to affect in the Azeroth
Wolfs in low human starting zone have changed texturing and are now diseased
The quest has also changed:
You need to collect Diseased Wolf Pelts instead of Wolf Meat:
There are earthquakes all over the Azeroth, Outlands and Northrend.
They're caused by these event NPCs called "[DND] Shakers"
Here is a proof: