Look What Mouths Can Do

Many animals use their mouths in amazing ways. Mouths communicate throughyawning spitting chattering whistling licking smiling and biting. Someanimals keep thei... » 

Many animals use their mouths in amazing ways. Mouths communicate throughyawning spitting chattering whistling licking smiling and biting. Someanimals keep their young in their mouths. Others use them as hiding places forweapons. Open this book to meet some remarkable mouths. «