美人鱼真的存在吗？
Mermaids, the half-human, half-fish creatures of the sea, have appeared in the stories of seafaring cultures since ancient times. The ancient Greek poet Homer wrote about singing sea creatures that lured sailors in The Odyssey. In ancient East Asian legends, mermaids were the wives of powerful sea dragons and carried messages between their husbands and the emperors on land. Aboriginal people in parts of Australia tell of water spirits called yawkyawks.
Belief in mermaids may go back to the very beginning of human history. Magical female figures first appear in cave paintings from the late Stone Age, around 30,000 years ago, when modern humans spread across the land and probably began to sail the seas. Myths around the world are also full of other half-human creatures, such as wise centaurs, wild satyrs and terrifying minotaurs.
So, are mermaids real? No evidence of sea-dwelling humanoids has ever been found. Why, then, do mermaids appear in the stories of almost every seafaring people? That's a question best left to historians, philosophers and anthropologists.
美人鱼，这种半人半鱼的海洋生物，自古以来就出现在各个航海民族的故事里。古希腊诗人荷马在《奥德赛》中，就写到了用歌声引诱水手的海中精灵。在古代东亚的传说中，美人鱼是强大海龙的妻子，负责在海龙和陆地上的帝王之间传递消息。澳大利亚部分地区的原住民也流传着一种叫作“yawkyawk”的水中精灵的故事。
人们对美人鱼的信仰，也许可以追溯到人类历史的最初。神奇的女性形象最早出现在大约三万年前、石器时代晚期的洞穴壁画中，那时现代人类正在陆地上四处扩散，很可能也开始航海了。世界各地的神话里，还有许多别的半人半兽的生物，比如睿智的半人马、狂野的萨提尔，以及可怕的牛头人。
那么，美人鱼真的存在吗？至今从来没有发现过任何生活在海里的类人生物的证据。既然如此，为什么几乎每个航海民族的故事里都有美人鱼呢？这个问题，最好还是留给历史学家、哲学家和人类学家去回答吧。