Does all Animals has emotions like human?

Yes every animal has emotion like human even plants has too

But I listen that horse do not have heart which have emotion that is the reason horse can run long.

Horse also have emotions. All animals have emotions not only dog.

many dogs have been helping humans for a long time. with time the master and the dog gets into a sort of mental attachment which neither can forgave. even dogs are attached to many fellow dogs. see this picture. i have posted it before. but it is relevant in this context.

Surely animals show emotions.It is clear from their response in each occations.