乌翅真鲨，马尔代夫 Blacktip reef sharks, Maldives (© Filippo Bacci/Getty Images)

乌翅真鲨，马尔代夫 Blacktip reef sharks, Maldives (© Filippo Bacci/Getty Images)

一群鲨鱼正在狩猎 A shiver of sharks on the hunt

鲨鱼保护日

今天是鲨鱼保护日。据化石记录显示，鲨鱼已经在海洋中繁衍生息了至少4.2亿年。世界上有500多种鲨鱼，其中三分之一面临灭绝风险。每一种鲨鱼都有一套适应其所在环境的独特方法：锤头鲨拥有360度视野，光滑的灰鲭鲨是所有鲨鱼中游速最快的，黑尖礁鲨可以伪装成珊瑚礁……这些生物展示了惊人的多样性。在大多数人的印象中，鲨鱼性情凶猛和攻击力强，是无情的“海洋杀手”。但其实也有性情温和的鲨鱼，比如护士鲨。今天，让我们行动起来，共同倡导保护这些被人们误解的海洋生物！

Shark Awareness Day

Today, on Shark Awareness Day, let's dive into the ocean's depths to meet our finned friends. It's believed that sharks have been cruising the oceans for at least 420 million years. Today’s homepage shows blacktip reef sharks, hunting in a group in the waters around the Maldives, one of more than 500 species of shark, each uniquely adapted to its habitat. From the graceful hammerhead with its panoramic vision to the fastest species, the sleek mako, shark species are diverse, but a third face extinction. Among threats are unregulated fishing and abandoned nets as well as demand for shark fins. They have a fearsome reputation but are the victims of myths and misconceptions that paint them as mindless killing machines. Today, let's celebrate these magnificent creatures, a key part of healthy marine ecosystems, by advocating for their conservation.