【英语时差8,16】聪明的章鱼

（单词翻译）

 Chimps do it. Dolphins do it. Even crows that want to catch fish do it. But an octopus¹? Yes, it seems the smartest member of the invertebrate² world has learned how to use a tool. Octopuses³ have a reputation for being clever. They can figure out how to pull a plug out of a glass jar to get to food. They have been known to escape from holding tanks. They have the ability to navigate⁴ mazes⁵ and seem to be able to remember past experience. But tool use? That does seem incredible. Tools, by definition, are objects that have no purpose until they are used for a specific function. Scientists have known for some time that octopuses make use of shells and other objects they find to hide from predators⁶. But observations of veined octopuses, known as Amphioctopus marginatus, off the coast of Indonesia surprised scientists. Not only do they use coconut⁷ shells to hide beneath, they carry the shells with them.