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Index Entry
The spider makes a web and that is a tool, and the bird makes his nest which is a tool. We find that all life carries on some kind of external environment-altering operation which, when importantly persistent and specific, detaches some of the environment from the rest of the environment and fashions the detached increment into a multifold complex which we identify as a tool with which the living species effect much greater repetitive alterations of other aspects of the environmental processes. For instance, a man takes part of a tree and shapes it into an axe handle with which he chops down other trees in order to concentrate lumber from those trees so densely that they will shed the rain. Man has developed his tool making capability to a far greater degree than has any other biological species.
