They can talk, just not a human language really. Some marine biologists have already suggested that dolphins be considered the Earth's first non-human people.
we will be extremely shy, or worse, we will kill all the animals that speak in front of us
Maybe there would be less cheating ging on, because cats and dogs could talk and they could spill the beans on whats going on in the neighbourhood and who is doing who! LOL
A people cull !!!!!!