Rodents are currently one of the most diverse orders of mammals. Spread through all continents, they have extremely varied ecological niches.

They form a world that includes "friendly" species like squirrels and marmots, "scary" like rats or quite simply totally unknown like a number of voles. They can cause major damage or be vectors of disease.

In France, they are broken down into six families (21 genera and 31 species). Following a description of their relationship with the environment and then with Man, they are presented in an illustrated monograph. This new edition is a unique and one of the most recent summaries of the topic. It clarifies notions put forward in some chapters of the previous edition - public health and population regulation. It updates the regulations (control and protection). It takes account of new knowledge acquired on several species (recent introductions, new species, etc.).