Known individually and collectively since the 1960s, Les Lalanne developed a style that defines inventive, poetic, and surrealist sculpture. Having rediscovered the Renaissance art of casting forms from life, and employing contemporary electro-plating techniques. Claude Lalanne achieved a delicacy and sensitivity in her work unparalleled in cast bronze.

Francois-Xavier Lalanne similarly found inspiration for his works in nature. In his words, "The animal world constitutes the richest and most varied forms on the planet". His subjects consist of a menagerie of animals as stylized forms, oftentimes married with functionality. His works achieve streamlined elegance in their profound simplicity.

Most recently, Les Lalanne were the subject of a major retrospective at Musee des Arts Decoratifs in Paris and a large-scale public exhibition at the Fairchild Tropical Botanic Garden in Coral Gables, Florida. Their work was also featured on New York's Park Avenue and Getty Station, and in the sale of the collection of Yves Saint Laurent. The work of Les Lalanne has been present in major collections including the Musee Nationale d'Art Moderne/Centre Georges Pompidou, Musee d'Histoire Naturelle in Paris, the City of Paris, the City of Jerusalem, the Cooper Hewitt Museum in New York, and the City of Santa Monica.