Before us is the first popular science book in Russian about trilobites. Millions of years ago, these extraordinary animals of the most unimaginable shapes and sizes, predatory and gentle, crumbs and giants, reigned in the oceans and on land ... and then disappeared. Richard Forti, a great connoisseur of trilobites, who has been in love with them since childhood, intelligently and witty tells about the mysteries of their past life.