一个人Choerodon schoenleiniiwas photographed on the Southern Great Barrier Reef carefully positioning a clam in its mouth to smash against a rock. By Jane Goodall’s definition of tool use this tuskfish was definitely using an “external object as a functional extension of mouth or hand in the attainment of an immediate goal“。大型水族馆饲养员Coris,Halichoeres而且，象牙鱼不会感到惊讶，得知看到一大墨西哥鱼被砸碎了岩石，但也许有些困惑的是，科学家最近对此做了很大的作用，因为大型水族馆经常砸碎喂食器鱼和甲壳类动物，以抓住肉的肉。里面。
What is perhaps more fascinating to us is that four of the six photographs published on this event in Coral Reefs feature angelfish in the frame, perhaps indicating tool use by another group of fish. The divers who documented the clam-smashing tuskfish reported seeing many opened shells in the vicinity and theChaetodontoplusangelfish know what’s up. In much the same way that the tuskfish is using the exposed rock as an anvil to open its clams, it’s highly probable that some scribbled and queensland yellowtail angelfish are aware of the routine and using the tuskfish as a delivery service for clams on the half shell.
