Do animals speak different languages?

Language is a medium to express our feelings. Each and everybody whether a human being, animals, birds or insects have the same. That's why may be their way is different (by making sounds etc.) but all of them speak.

yes, my dogs were trained in English and German

If we understand language as a way of communicating meaning to another person (or animal), then arguably many animals have language skills. Further, since they all use different types of sounds, it also follows that they "speak" different languages as well.