Animals communicate regularly through telepathy. Every human on the face of the earth is born with the ability of telepathy. As humans, we learn to rely so much on verbal communication and our telepathic skills are pushed aside and become rusty.  Just like a muscle, unless used regularly, these skills become weak and inefficient.  Humans, given the proper mindset and training, have the ability to communicate telepathically with all species.
 

Communication with an animal is a two way process as there is a sender and a receiver. Animal Telepathy can be done in person or over distance. A great example of this is when you are thinking of someone and the phone rings, low and behold it is the very person you were just thinking about.  Coincidence or Telepathy!!  We have all had telepathic experiences, we just don't recognize them as such.