On the fifth day following the murder of the ship's officers, land was sighted by the lookout. Whether island or mainland, Black Michael did not know… - Edgar Rice Burroughs

To him life was never monotonous or stale. There was always Pisah, the fish, to be caught in the many streams and the little lakes, and Sabor, with her ferocious cousins to keep one ever on the alert and give zest to every instant that one spent upon the ground. Often they hunted him, and more often he hunted them, but though they never quite reached him with those cruel, sharp claws of theirs, yet there were times when one could scarce have passed a thick leaf between their talons and his smooth hide.
Quick was Sabor, the lioness, and quick were Numa and Sheeta, but Tarzan of the Apes was lightning.

Had there been no other personal attribute to influence the final outcome, Tarzan of the Apes, the young Lord Greystoke, would have died as he had lived — an unknown savage beast in equatorial Africa. But there was that which had raised him far above his fellows of the jungle — that little spark which spells the whole vast difference between man and brute — Reason. This it was which saved him from death beneath the iron muscles and tearing fangs of Terkoz.

Tarzan must act quickly or his prey would be gone; but Tarzan's life training left so little space between decision and action when an emergency confronted him that there was not even room for the shadow of a thought between.