世界湿地日源起于在伊朗签署的《湿地公约》，中国在1992年7月31日加入了该公约。
World Wetlands Day came from the Convention on Wetlands signed in Iran, China joined the convention on July 31, 1992.
玳瑁海龟拥有漂亮的花纹龟壳，几千年来一直是商业龟甲的唯一来源。
The hawksbill turtle possesses a beautiful marbled shell, which has been exploited for thousands of years as the sole source of commercial tortoiseshell.
源起：不详。但网络传言始于2008年。
Origin: Unclear, but it began circulating online in late 2008.
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