... about, tripped him and hurled him violently to the floor, leaping upon his breast as he fell. From the bed the ape growled and struggled with his bonds. The boy did not cry out—a trait inherited from his savage sire whom long years in the jungle following the death of his foster mother, Kala the great ape, had taught that there was none to come to the ... — The Son of Tarzan • Edgar Rice Burroughs