A gardener who spots a long, gray, legless reptile in their garden might initially think it's a snake. However, a closer inspection of its eyes can reveal it's actually a slow worm, a legless lizard that is a protected species in France. Unlike snakes, which have no eyelids and are permanently covered by a transparent, fixed scale, slow worms have movable eyelids. This key anatomical difference often goes unnoticed, leading to confusion between the two reptiles. The slow worm, also known as the fragile slow worm, is a legless lizard that still has vestigial remains of limbs in its skeleton. It is a valuable presence in vegetable gardens, as it feeds on slugs, worms, small insects, and larvae that can harm young plants. A single slow worm can consume a large number of these pests during autumn, when humidity encourages their growth. Unlike chemical pesticides or beer traps, the slow worm naturally controls these pests without human intervention. French law prohibits the destruction, capture, or intentional disturbance of slow worms, reflecting the decline of native reptiles due to habitat loss from intensive farming and urban expansion. While enforcing this law can be challenging in amateur gardening settings, preserving these reptiles helps maintain biodiversity in gardens, slopes, and forest edges. When encountering a slow worm, gardeners should look for its movable eyelids, lack of aggressiveness, and small size, usually less than fifty centimeters. These traits confirm it is a slow worm rather than a snake. The slow worm is harmless to humans, as it lacks venom or the ability to bite through skin. Therefore, gardeners are encouraged to leave it undisturbed, avoid disturbing its hiding spots, and never kill it. By protecting this quiet lizard, gardeners also help preserve the natural balance that benefits their vegetable gardens.