1.
y Bruce asks:
Why are we so sure that Gedi excludes Beheimah Temeiah?
y Bruce, har nof
2.
The Kollel replies:
The Ritva and others explain that this is because the Torah specifically mentions a pure animal, and otherwise would have said "Beheimah" in general (and Chayah is usually included in Beheimah).
All the best,
Yaakov Montrose