From what I have read on the subject and seen on wildlife shows, big cats (both modern and the long gone Saber Tooth Tigers) prefer to attack from behind, stalking thier prey, jumping on them from behind and severing the spinal cord in the neck/head area with sharp teeth and powerful jaws. These daggers are perfect for the task at hand, which is killing. This man was VERY lucky to be alive, as the majority of the time the victim, be it man or beast never knows they are being attacked until the teeth are sinking in and they are half dead.