How did Jean Baptist de Lamarck explain the evolution of snakes?

Jean-Baptiste de Lamarck proposed that snakes evolved through the inheritance of acquired characteristics. He suggested that ancestral lizards, in response to their environment, gradually lost their limbs as they adapted to a more serpentine lifestyle, primarily for movement through narrow spaces. This adaptation was thought to be passed down to subsequent generations, leading to the development of modern snakes. Lamarck's ideas emphasized the role of environmental influence on evolution, though they have since been largely supplanted by Darwinian natural selection.