I taught my dog to nod his head and he can also say YES verbally but I don't have any video of it.
I suppose understanding the natural sounds animals make is like us understanding Spanish or French or Russian. But we can teach animals English, and they pick it up and respond in English.
And being Adam and Eve where in the God like mode there would be no creature they couldn't fully understand the spoken sounds of.
I'm amazed that I explained this scientifically, I never really thought about it before. Thanks PR for making me think.