153. The "Badger" Radical: 豸
The seven-stroke "badger" radical 豸 would seem to have everything to do with animals. That is, the non-Joyo autonomous kanji 豸 means "snake," "legless insect," or "slowly crawling animal." Furthermore, the 豸 radical is named after an animal. To wit:
• The primary radical name むじな (or むじなへん when the radical appears on the left side of a kanji) translates as "badger." The yomi むじな comes from the reading of the non-Joyo 貉 (むじな: badger).
• Nelson mentions あしなきむし (reptiles) as another way of referring to this radical. However, very few sources reflect that radical name.
• He provides the nickname "clawed dog" to help people distinguish between radical 153 and the English names of these two radicals:
radical 87, 爪, the "claw" radical
radical 94, 犬, the "animal" radical, also known as the "dog" radical
The 豸 radical is also animalistic in 貌 (2110: appearance); that left-side shape means "beast," according to Kanjigen. The right-side component (and phonetic) 皃 represents "person," depicting that person's head and legs. All together, 貌 means "outline of a person or animal's appearance," though no one uses 貌 for an animal's appearance now.
By the way, 貌 isn't just a outlier that we can easily dismiss with its lack of beastliness; it's the only Joyo kanji to include the 豸 radical!
The 豸 shape does pop up as a component in two other Joyo kanji, but those characters also have no connection to animals:
墾 (1281: cultivating land)
懇 (1282: friendly)
For what it's worth, though, most non-Joyo kanji with this radical do remain in the animal kingdom, as we saw with 貉 (badger). Here are other examples:
豹 (leopard, panther)
豺 (jackal)
豼 and 貅 and 貔 (brave heraldic beast)
貂 (marten, sable), a furry mammal
貍 (raccoon-dog), read as たぬき, though the non-Joyo 狸 is the "real" tanuki kanji
貎 (lion; wild beast; wild horse)
貘 (tapir)
So on the very rare occasions in which you encounter the 豸radical, you should still be on the lookout for sharp fangs and flashing eyes!