Their tongues change the sound of barking

Well, a dog’s tongue influents the way they bark. This is normal and this phenomenon is also found in people because everyone has a different voice. “Any structure in the mouth will to some degree participate in creating voice and sound,” Reiter says. “Most definitely the tongue plays a role in how a bark will sound,” Reiter says, but “the actual bark is made by something different.”

Even though this phenomenon is also found in humans, things work differently because dogs’ tongues are larger and narrowed and it can influence the ‘shape’ of sounds. “A dog tongue is differently mobile in part because dogs don’t speak,” Hohenhaus says. “They don’t need to move their tongue around to [pronounce] the letter S or T.”