Contrary to popular belief, they aren't dumb; they just didn't evolve when the rifle was around, but they are fast learners, particulary Eastern Greys. They have excellent scenting ability, sensitive ears, and keen eyesight - during the day! At dusk, they seem to develop night blindness. If you want to hone your stalking skills, hunt a mob of roo's over and over again. They will soon become very flighty.