 Non-kosher animals and birds (based on Leviticus 11: 3 – 8 and Deuteronomy 14: 3 – 21): mammals require certain identifying characteristics (cloven hooves and being ruminants), while birds require a tradition that they can be consumed. Fish require scales and fins (thus excluding catfish, for instance). All invertebrates are non-kosher apart from certain types of locust, on which most communities lack a clear tradition. No reptiles or amphibians are kosher.
