If you live in the North Island and you have seen a flash of bronze disappear under a flowerpot, you have met a Copper Skink. Measuring in at a modest 12 centimetres, half of which is tail, they are the compact, high-speed commuters of the leaf litter. Their name comes from their stunning metallic sheen. In the right light, their smooth, polished scales glow with the warmth of a New Zealand two-cent coin. Unlike their larger, armoured southern cousins, the Copper Skink is sleek and streamlined. Designed for navigating the tight, tangled tunnels of a Kikuyu grass lawn or a mulch pile. Oligosoma aeneum is the master of the tactical retreat. Their most famous survival mechanism is caudal autotomy. The ability to voluntarily drop their tail when grabbed by a predator. The discarded tail continues to wriggle violently on the ground. A frantic, fleshy distraction that buys the skink the few seconds it needs to vanish into the shadows. While the tail eventually grows back as a slightly stumpier, darker version, it is a high-cost manoeuvre. Despite this disposable anatomy, they are surprisingly long-lived. Often reaching 10 to 15 years of age if they can dodge the local ginger cat. Unlike the nocturnal geckos, Copper Skinks are diurnal sun-seekers. They are heliotherms, meaning they rely on direct sunlight to jump-start their internal engines. You will often find them pancake-flat on a warm piece of wood or a dry stone in the early morning. Soaking up the UV rays before heading off to hunt. Their diet is a hit-list of garden pests. Small spiders, slaters, crickets, and moths. They are highly efficient hunters, using their flickering tongues to taste the air for chemical cues of their prey. In a brilliant adaptation to the variable New Zealand climate, they give birth to live young. Usually three or four pups in mid-summer, skipping the vulnerable egg stage entirely. Protecting the Copper Skink is a matter of messy gardening. They thrive in the spaces we usually try to tidy up. The overgrown corners, the piles of rotting wood, and the deep drifts of autumn leaves. While they are resilient, they are under constant threat from the suburban gauntlet of domestic cats, hedgehogs, and lawnmowers. By leaving a small wild corner in our gardens, we are essentially providing a fortress for the last of the mainland lizards. They are the tiny, metallic heart of our urban ecosystem.