50年后在巴布亚新几内亚 科学家们重新发现了世界上最稀有的鲨鱼 背帆猎鹰 Scientists rediscover the world's rarest shark, the sailback houndshark, in Papua New Guinea after 50 years.

50 年后，科学家们在巴布亚新几内亚的星盘湾重新发现了帆背猎犬鲨，最后一次出现是在 1973 年。 After 50 years, scientists have rediscovered the sailback houndshark in Papua New Guinea's Astrolabe Bay, where it was last seen in 1973. 自2020年以来,有6名新人,包括第1名男性,被记录在案,暴露了鲨鱼可能具有的微流行性。 Six new individuals, including the first male, have been documented since 2020, revealing the shark's likely microendemic nature. 该物种被视为世界上最稀有的物种之一,面临过度捕捞和鱼类游泳囊贸易增加的威胁。 The species, considered one of the rarest in the world, faces threats from overfishing and the increasing trade in fish swim bladders. 目前正在开展保护努力和DNA分析,以更好地了解和保护帆背猎犬。 Conservation efforts and DNA analyses are underway to better understand and protect the sailback houndshark.