For example, 蠍 is written as サソリ. Even if they use the Kanji in text, they add furigana above it rather than letting the audience themselves decipher the meaning. It's the same with 榊 (サカキ), 仙人掌 (サボテン), 百足 (ムカデ), 蟻 (アリ), 鰐 (ワニ), you get the picture. Why can't they just write them in Kanji without furigana in the same frequency as encountering 本 or 日 upon encountering texts containing these types of words?