The book contains data scattered in the scientific literature on various manifestations of what can be called the "industry" of animals - about their buildings, nests, fabrics, cocoons, mine galleries, etc. Weavers, masons, paper and cardboard manufacturers, hammock manufacturers, canned food manufacturers, sappers and other masters of the animal world pass in front of the reader in a motley crowd. The book unfolds an amazing picture of the complexity and perfection of instincts in insects and birds.