Prāyaścitta-vidhāna: Tapas, Dāna, Vrata, and Proportional Expiation (प्रायश्चित्तविधानम्)
क्रव्यादा दंष्टिण: सर्वे चतुष्पात् पक्षिणश्न ये । येषां चोभयतो दन्ताश्षतुर्दष्टाश्न सर्वश:
kravyādā daṁṣṭinaḥ sarve catuṣpāt pakṣiṇaś ca ye | yeṣāṁ cobhayato dantāś caturdaṣṭāś ca sarvaśaḥ ||
Vyāsa said: “All flesh-eaters and all creatures furnished with fangs—whether four-footed beasts or birds—and, in general, all beings that have teeth on both jaws and four prominent fangs are to be regarded as unfit for eating (abhakṣya).”
व्यास उवाच
Predatory, flesh-eating creatures—especially those marked by fangs and a carnivorous nature—are classified as unfit for consumption, reinforcing restraint and purity as aspects of dharma.
In a didactic passage of the Śānti Parva, Vyāsa lays down a rule-list style classification of animals, specifying which kinds are to be avoided as food, using anatomical and behavioral markers (flesh-eating, fangs, teeth on both jaws).