Archaeologists have found on one of the sites of Neanderthal tools to work with the skin. Carved from bone curved plates almost as good as the tools in use by smoothing the skin. This finding leads scientists to assess the presentation on the capabilities of the Neanderthals.

A Wisconsin man is seen as a technical challenge. Another, in New Hampshire, he was trying to save some money. And in Texas, a third wanted to make a political point. The three can have different reasons, but the results were the same: each constructed a gun of work that ...