leaping blur

The adult sauropithecus launched itself toward Lycon, forty feet beneath the ledge upon which it had hung. The lizard-ape was no more than a blur, an impression too sudden and ill-lit to be seen in detail. Another man would have frozen there, gaped stupidly, and died an instant later. Lycon knew well the blinding speed, the razor-edged deadly claws, and at the first shimmer of movement from above, the hunter was already in motion himself.
-Killer, pg. 173