Do you think Dog and Cat can become friend?

Certainly!! I have a cat who loves being with my dog. They sometimes sleep together.

Ya they can became friends, i have a cat and a dog, they both love eachother. It may because i got them when they were small, thats why both are comfortable. I dont what would have happened if one of them or both of them were little big.

well I had a dog named lady jane an when our cat trixie who ssh dont tell her I said this was a runt came to our home lady jane took care of this cat an when our trixie had kittens she would lave her box to go outside or just to walk around an lady would get in the box an kitten sit I also had a cat name nikkie that use to bring sick animals to me one time he brought me a dove an if he was sitting on the window he would jump off pick that bird up in his mouth an jump on the window with the bird an put her down an they would sit there for awhile looking out the window it was a sight an right now i have 2 dogs an 4 cats an 2 rats an yes they all get along

i think it's impossible ! so you'd better find some good way to keep them in the line ! lol

May be. I have seen many photos in Newspapers regarding to that.