[Avodah] Birds vs waterfowl - daf yomi 56b

[Hankman]

In the daf yomi at the top of 56b, Rav Shizvi says "hani avzi didan ke'oif shel mayim damyan." Rashi explains, "ho'yil vetomid hain bamayim," meaning and therefore their krum is rach as well - just like waterfowl.

This sounds pretty Lamarkian to me.

Also, is anyone aware what difference we can see nowadays if we examine the krum of an oif and that of waterfowl?

Kol Tuv

Chaim Manaster
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