14 Is not then the Artificer worthy the rather to be glorified? For what? If you know not the nature of all things, do the things that have been made immediately become useless? Can you know the efficacy of all herbs? Or can you learn all the benefit which proceeds from every animal? Ere now even from venomous adders have come antidotes for the preservation of men. But you will say to me, “The snake is terrible.” Fear thou the Lord, and it shall not be able to hurt you. “A scorpion stings.” Fear the Lord, and it shall not sting you. “A lion is bloodthirsty.” Fear thou the Lord, and he shall lie down beside you, as by Daniel. But truly wonderful also is the action of the animals: how some, as the scorpion, have the sharpness in a sting; and others have their power in their teeth; and others do battle with their claws; while the basilisk's power is his gaze. So then from this varied workmanship understand the Creator's power.
Source: Catechetical Lectures (New Advent)