The book is divided into four parts, each of which vividly and interestingly tells about sharks, lobsters, merow and frigates, t. e. about representatives of various types of fauna of the planet, living not only in the sea, but also on islands The crew of the Calypso made numerous dives in the Caribbean Sea to find out the behavior of sharks - these terrible predators of the sea. Throughout the book, the authors carry out the idea of the need for personal responsibility and the involvement of everyone in the preservation of this diverse diverse life. The book contains many color and black-and-white illustrations in the text and on separate sheets. Translated from French by H. E. Volzinger, afterword A. C. Sokolova .