Some insects have cutting instruments that work just as your scissors do. The poppy-bee is one of them, whose work is wonderful. This bee has a boring tool, too. Its nest is usually made in old wood. This borer cleans out the nest ready for use. When all is ready the insect cuts out pieces of leaves to line the nest and to make the cells. These linings are out in the shape of the cells. You, would be surprised to see the care taken to have every piece of just the right size, so that it will fit. When they are fitted, the pieces are nicely fastened together and put into the nest.