它们和章鱼一样都没有骨骼(尽管它们有一个软骨组织构成的基本骨架)。
Like octopuses, they have no bones (though they do have a rudimentary skeleton made of cartilage).
因为处在身体的末端，脚部是食腐动物最先吃掉的身体部位，又因为脚部是由很多小骨骼和软组织构成，它们很容易被毁掉。
Being at the extremities of the body, feet are often the first parts of a body that scavengers will chew on, and being made up of lots of small bones and soft tissue they are easily destroyed.
骨质，骨骼构成大多数脊椎动物骨架主要部分的稠密的、半刚性 的、多孔 的、钙化 的连结组织。
The dense, semirigid, porous, calcified connective tissue forming the major portion of the skeleton of most vertebrates. It consists of a dense organic matrix and an inorganic, mineral component.
骨质，骨骼构成大多数脊椎动物骨架主要部分的稠密的、半刚性 的、多孔 的、钙化 的连结组织。
The dense, semirigid, porous, calcified connective tissue forming the major portion of the skeleton of most vertebrates. It consists of a dense organic matrix and an inorganic, mineral component.
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