text: what two animals have similar vocal cords to humans?   no animals have vocal chords that are very similar to humans. we are unique in that respect.  if you need the most similar then any two mammals will do. guinea pigs and horses are as good as any other answer.  those people saying parrots are maroons. birds don't have any vocal chords at all. they produce sound with an organ known as a syrinx which is nothing like the vocal chords of mammals.