Michael S. Winokur asked:
Why is a two-backed animal which is a ben pekuah forbidden. Rashi seems to indicate that it is a neveilah. Why is it not a terefah? I would have thought that even if it could live a short time it would at worst be tereifah. If it is a neveilah not only is it forbidden to eat but is also an av hatumah.
Michael S. Winokur, Forest Hills, New York, U.S.A.
The Kollel replies:
Tereifos are limited to those listed in the Mishnah. However, as Rashi writes, this is a Neveilah, not a Tereifah, because it is a Nefel. It is as if it was born dead for it cannot exist.
D. Zupnik