#6 Azawakh
sometime called the Africa greyhound. this sight- hound likes to hunt in packs. there's only about 300 know to be alive.  they have a  Double suspension gallop like a greyhound and they hate getting wet a house cat.
 
#7 this was going to be number 1 until i read this.  it seems there's a few more of them then we thought.
however they are still way cool dogs. the New Guinea  Singing Dog's still kind of a mystery. as the name suggest there from New Guinea and they Sing.  scientist don't know why they do this and other strange behavior's but if you do see one stop and get a picture, they are one rare dog breed!