The specific mechanics involved in speaking have anatomical requirements that are found primarily in humans (the exception being angels—1 Cor. 13:1; Rev. 5:2; and also birds—although they produce sound differently). There is no animal living presently, nor has one been observed in the fossil record, that possesses anything close to the ‘voice box’ (as we commonly call it) present in humans. As information scientist Werner Gitt observed in his fascinating book, :


Satisfied customers are saying