In Mark of the Ninja, dogs have a rather large 360 degree detection radius, which shows up in purple as they are sniffing along the ground, seeking me even in the darkness.
However, at times I've found dogs that were "on alert" - and instead of having their purple smell-ring-detection-indicator, they've got little growl noise-rings. On one of the early missions, there are a whole bunch of these dogs after you steal a particular item and the alarms automatically trigger.
The game's been pretty good about keeping me abreast of the detection radius of enemies, but in this case, even though the "smell radius" is gone, it seems like I still can't sneak up on these growling dogs. Can these growling dogs still detect me by scent?