The character 蝙蝠 (biānfú, meaning "bat") is formed by combining two similar characters, both sharing the "insect/creature" radical 虫 on the left, which categorizes it as an animal. The right side of each provides a phonetic hint: 扁 (biǎn) suggests the sound for the first syllable, while 甫 (fǔ) suggests the sound for the second, creating a two-syllable word for a single creature. Visually, the repetition of the radical emphasizes it is a single, specific type of creature, and the paired construction is typical for names of certain animals, mimicking the creature's two-winged form through the character's dual structure.