A large South American freshwater food fish(Arapaima gigas) that typically attains a length of3 meters(10 feet). 巨体舌鱼属一种大型南美淡水食用鱼（巨骨舌鱼）一般长达3米（10英尺）
A diver shares a tank with an adult arapaima fish at an aquarium in Manaus, Brazil. 在巴西的马瑙斯[巴西西北部城市]，一名潜水夫和一头成年巨滑舌鱼同处一池。
The Arapaima uses its bony tongue to crush prey against the roof of its mouth before swallowing. 在咽下去之前，巨骨舌鱼使用其带骨头的舌头将猎物与自己的上颚仿佛撞击。
This behavior makes it plausible to imagine a fisherman being struck and knocked unconscious by a frantic arapaima. 这种行为很有可能就让钓鱼者被一只绝望挣扎的巨骨舌鱼打昏。
The site protects key threatened species, including giant arapaima fish, the Amazonian manatee, the black caiman and two species of river dolphin. 保护区为许多珍稀濒危动物提供保护，例如巨骨舌鱼、亚马逊海牛、黑凯门鳄和两种淡水豚类。
The arapaima is the focus of several conservation projects in South America, including no-fishing reserves and fishing quotas. 因此这种巨滑舌鱼的保护项目在南美逐渐成为焦点，包括休渔期和限定配额的捕捞。
