[Economic Significance] Dragonflies have slender bodies, bright colors, elegant postures, flexible and agile flight, interesting and attractive. They are people's favorite ornamental insects, often active in fields, gardens and other places during the day. The idiom "dragonfly touches the wat...
Insects are a type of arthropod with a body divided into three parts: head, thorax and abdomen. They have six legs and a pair of antennae. They are often called "bugs". Insects are widely distributed in various ecosystems on the earth. They are numerous and diverse, wi...
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