What kind of question is this? Of course there is.
Chordata. Rat Terriers are dogs, dogs are mammals, mammals are chordates. :)
Currently no. Rat Terriers are listed as a Foundation Stock Service breed.
yes 2 rat terriers Ace and Penny
No.
Yes.
You can mostly feet rat terriers cheese.They are highly likely to want that.Try giving it to your pet to see.
No, but you can get a Yorkshire Terrier. Yorkshire Terriers are similar to Rat Terriers.
yes!
Yes.
Jack Russels, Dachunds, Wiltishire Terriers, Rat Terriers (that is an actual breed), Foxies, Miniature Pinschers. Would you like more?
It is instinct and part of their nature.
that is completely up to you