0_Apprentice
I love dogs, especially collies!  Are you a dog lover?
1_Wizard
I am a dog lover actually. Collies are some of my favorite dogs. It's amazing how they are used as a herding dog.
0_Apprentice
What is a herding dog?  I am unfamilier with that term.
1_Wizard
A herding dog is a type of working dog which has been trained in herding other animals. One example is herding sheep for instance.
0_Apprentice
That is awesome!  I had no idea.  I would assume that means these dogs are really smart, right?
1_Wizard
Yes they are incredibly smart and trainable. They are trained to act on the sound of a whistle and this has made them renowned globally.