Hayy becomes aggressive, and attacks wild beasts.

Thus armed, he began to attack and affright such of the wild beasts as ventured to oppose him, assaulting the weaker and defending himself against the stronger. In this way he came to understand to some degree his own strength, and found out that his head by far excelled theirs, as he had been enabled therewith to cover his own nakedness and to provide himself with a weapon wherewith to defend himself. So that now he had no need of those natural weapons which he had formerly so much desired.