Basic appearance of animals: dung beetles, also known as dung beetles, are large and medium-sized insects with black or dark brown bodies. Dung beetles can locate themselves by moonlight polarization, which helps them find food and has certain phototaxis. There are more than 20,000 species of dung beetles in the world, which are distributed on any continent except Antarctica. The most famous dung beetle lives in Egypt and is 1.0~2.5 cm long. The largest dung beetles in the world is the Giant dung beetles (dung beetles), with a length of 10 cm. Dung beetles are mostly dung-eating animals, which feed on animal dung and are known as "natural scavengers".
Question Summary: Lang in dung beetles reads the fourth sound.
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