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46

The Torah says that we may not eat anything without fins and scales if it is among the "sea-life" or of the "beasts of the sea" (Vaykira 11:10) which the Ramban thinks refers specifically to sea creatures that have two legs like those of land-creatures. Assuming that he's talking about mermaids, he implies that they have two legs, instead of fins, and are ...


23

The gemara in Bechoros 8a, which discusses mermaids, says they can be impregnated by people. As such, they would be non-kosher due to the qualification found there (Bech. 7b) a kosher fish lays eggs and a non-kosher fish births a live creature. This is the simple understanding found in the pirushim on the Tosefta (1:5) there. Tosafos there complicates ...


21

The Midrash Tanchuma (Vayikra 1:8) asks your question: ולמה קריבין קרבן מן העוף ומן הכבשים ומן הצאן ומן העזים ולא מן הדגים, שנאמר, [ו] אם מן העוף עולה קרבנו, אלא בשביל שהם בשר ודם כמו האדם ויוצאין מבטן אמן כמו האדם, מכפרים על האדם. אבל הדגים, ביצים הם ויוצאין מהן וחיין. And why do we offer up sacrifices from birds, sheep and goats but not from fish? Because ...


17

Rama on Yoreh De'ah 13:1 says that it is forbidden to eat a fish while it's alive due to it being disgusting. (Baal Teshakzu) Mishna Torah Hilchos Shechita 1:4 says it is permitted to eat live fish.


13

Here is an answer from The Star-K. Similarly fish gelatin in order to be considered kosher must be produced from kosher species of fish. The use of fish gelatin with meat foods poses an interesting question. As we have mentioned the Shulchan Aruch (Yore Deah:116) prohibits cooking meat and fish together because of health concerns. When dealing with possible ...


13

Kosher speciation Generally speaking, we have a rule that "kol hayotzei min hatahor tahor, vichol hayotzei min hatamei tamei" ("that which comes from a kosher species is kosher, and that which comes from a non-kosher species is non-kosher"; see Bekhoroth 1:2). Since this new species comes from kosher and non-kosher species, there would be several potential ...


12

Because the question asks, "which sources say yes and which sources say no", I feel like the question warrants a response that includes a few more sources. The most comprehensive discussion of the issue is published by Dr. Ari Zivotofsky in Bar Ilan's journal Bechol Derachecha Daeihu (vol. 19) and its history is summarized in this news article. Rav Hershel ...


11

Kosher mammals (cows, sheep, goats, deer, etc.) and birds (pigeons, chickens, etc.) must be killed by kosher slaughter. So if your pet pigeon dies of natural causes, it’s not kosher. (In fact, if you kosher-slaughtered it but then found it had a massive tumor that would have caused it to die soon anyhow of natural causes, it’s still not kosher!) Kosher fish ...


11

Dr. Leiman writes on the mouse that is 'half-mouse-half-earth" that, (p.452): "... it comes as no surprise that the rabbis discussed the status of a creature they had never seen, and one that modern scholarship would label as imaginary. The greatest scientists and historians of their day took its existence for granted. If so, its halakhic status needed to ...


10

The only Rishon I saw who identifies the Dag Gadol in his commentary is [R Eliezer of Beaugency to Yonah 2:1][1], and he identifies it as a "בַלְיינְא וכיוצא בו", which is a baleine (etc.) in French (see also here) or a whale in English. Therefore, I find it very hard to believe that there is any issue with explaining it as such, and I would recommend that ...


10

It says in Sanhedrin 59b כי הא דרבי שמעון בן חלפתא הוה קאזיל באורחא, פגעו בו הנך אריותא דהוו קא נהמי לאפיה, אמר: (תהלים ק"ד) הכפירים שאגים לטרף. נחיתו ליה תרתי אטמתא, חדא אכלוה וחדא שבקוה. איתיה ואתא לבי מדרשא, בעי עלה: דבר טמא הוא זה או דבר טהור? - אמרו ליה: אין דבר טמא יורד מן השמים. בעי מיניה רבי זירא מרבי אבהו: ירדה לו דמות חמור מהו? - אמר ליה ...


10

I'd asked Rabbi Hershel Welcher of Queens a similar question, about goats that were given a bit of spider genes so they would produce gossamer in their milk. He felt the concept of "zeh v'zeh gorem, mutar" applied -- as the spider genes would not have sufficed to produce an organism, such a goat is kosher. So the same should apply here.


10

As always, the answer is: "it's a machlokes!" Open up a Shulchan Aruch to Yoreh Deah 116:2, where it says not to mix meat and fish. The Taz's opinion is that because meat-and-fish is a health concern, we are stricter about it than normal kashrus prohibitions, therefore if you pour one ounce of fish juice into a hundred ounces of beef broth, you may not eat ...


9

The following explanation is in a footnote at torah.org 22 For unknown reasons, Tosfos, Moed Katan 11a (quoted by Reb Akiva Eiger Y.D. 116 and by Kaf ha-Chayim 170:79), advises against drinking water [or soda] after fish. She'arim Metzuyanim B'halachah 33:2 (2) suggests that for this reason whiskey - and not water - is customarily drunk between ...


9

I have heard that Rabbi Avraham Yosef Shlita has said in a Shiur that it is not Muktze, since this is the way people eat it.


9

R' Cohen in Dose of Halacha quotes R' Ben-zion Abba Saul who does allow you to use flakes, though writes that others advise you to buy worms, etc. or something that is chametz free. Rambam (Chametz Umatza 4:8) and the Shulchan Aruch (OC 442:4) write that one does not need to dispose of a mixture containing chametz that is totally inedible (by humans). Thus, ...


8

Harav Akiva Eisenberg (formerly a lecturer at Aish and Ohr, now retired,) told me something excellent. Our preparation and the order of the meal at the Shabbos table is a re-enactment of Ma'aseh Bereishis. The order of our preparation and of our meals seems to be inviolate, as if it were set in stone. Who would have a fleishige first course and a main ...


8

Yes. Goldfish are kosher. You can even kill it to eat it if you want. Ritual slaughter is not necessary for fish (Rambam (Maimonides), Laws of Shechita (Slaughter) 1:3). Lists of kosher fish


8

The Chasam Sofer (Toras Moshe parshas Shemini) writes that the meaning of the Medrash (cited by many Rishonim) that the pig is called a חזיר because עתיד הקב"ה להחזירה לישראל - Hashem is going to "return" it to the Jewish people - is that the physiology of the pig will be altered to chew its cud (the Kosher sign that it currently does not have) and will ...


7

I am no Gadol HaDor nor a Posake by any means, however, I have caught Swordfish in the past and can tell you that the deck of the boat has been covered with tiny scales after boating the Swordfish. I have also had the pleasure of hearing Dr. Ari Zivotofsky speak on this issue and we spoke afterwards of his extensive research in conjunction with my fishing ...


7

I like the question but couldn't find any mifarshim on the Medrash addressing this issue, so I will offer a deflection of the assumptions as an answer. I will argue that Fish, along with plants and bugs, were never meant to be immortal. Their life cycles and death were a matter of nature from day one, (well, from their respective days of creation:). So ...


7

Shellfish do not have fins and scales. As the pasuk Shmini 11:9 says Among all [creatures] that are in the water, you may eat these: Any [of the creatures] in the water that has fins and scales, those you may eat, whether [it lives] in the waters, in the seas or in the rivers. **Rashi explains: fins: Heb. סְנַפִּיר. These are [the wing-like ...


6

To flesh out Fred's comment: in Yoma 75b, R. Yehoshua ben Korchah states that the verb שטוח ("spreading out") in the next verse also implies שחוט, "slaughtering," indicating that שליו is something that requires shechitah - thus excluding fish (and locusts). Although Rebbi disagrees with that exegesis, he doesn't seem to argue with the basic fact of what שליו ...


6

A preliminary answer: according to the Aruch Hashulchan (Y.D. 83:10) the sea-creatures (i.e. fish) that are permitted by the Torah are only those that are fish-like, in that they have bones and proliferate. Additionally, he writes that sea-creatures which look like land animals - even if they have fins and scales - are not included in the kosher כל אשר יש לו ...


6

The Kesef Mishna (Shechita 1:3) writes: וא"ת סוף סוף נימא דבעו אסיפה בעודם חיים. וי"ל שאילו היה אפשר לומר כן אה"נ אבל כיון דא"א לאכלם בלא אסיפה שאפילו קלטן בפיו ולא אספם בידו מ"מ בעת שהם בפיו נאספים הם אם כן אינו דבר מיוחד דמזהר עליה קרא And if you want to say that in the end of the day we should say that it requires gathering while it is alive, one can ...


6

Yalkut Yosef 1:373:15 says that one may feed fish in his fishtank on Shabbos. מותר ליתן אוכל לדגים שבאקווריום בשבת Rabbi Chaim Tabasky also says it is permitted. This is only permitted for pet fish. One may not feed fish in a lake or ocean on Shabbos as they are not his responsibility. OU.org - Feeding the fish


6

This is not a definite reason, but it may be in memory of the teaching of Rav Yehuda said in the name of Rav found in Bava Bathra 74b which talks about the Leviathan that was salted and stored away by HaShem for the Tzaddikim in the world to come, meaning after the resurrection of the dead. There will be a special meal which will include salted fish. It ...


6

The OU site has an article on this. The explain: Therefore, products that contain amounts of fish that are not batel b’shishim must be labeled OU Fish, so that consumers will not unwittingly eat the product together with meat. If the amount of fish in the product is batel b’shishim, we do not require the product to be labeled OU Fish, provided that the ...


6

Jastrow suggests that the kilbith fish may be a stickleback. כִּלְ' , (כִּילְבִּית) כִּילְכִּית f. (=כילכלית, v. כלכל; or denom. of כלב, emp. כּוּלָב) name of a small fish, supposed to be a stickleback. Dictionary of Targumim, Talmud and Midrashic Literature by Marcus Jastrow, 1926 Additionally, the Soncino Talmud to Avodah Zarah 35b (footnote 18), ...


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