A monograph about a leech, a member of the ringworm family. The film shows their living conditions, structure, reproduction, and presents some of the 300 known varieties with particular emphasis on the medicinal leech, due to its practical application in medicine.
Z życia pijawek
演员： 未知
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类型：短片
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状态：11分钟
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更新时间：2026-07-31
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