Red-toothed

to the guidance of his friend Rownaa, son and heir of the red-toothed monarch already described.

Source: wiktionary

The reason why, with hunger unstaunched, you have left your quarry behind; Red-toothed, red-mawed, foregone your meal! Sir Wolf, we'll know your mind!”

Source: wiktionary

Apart from man, who has his anguish of the imagination, his torturing apprehensions and, thereto, his faculty for prolonging lives of pain and sickness, the ideal which Nature, unreasoning and red-toothed, has of life is this - a vivid, happy experience wrought to highest pitch, then the sudden death, the end coming in mid-course.

Source: wiktionary