Camouflage and mimicry have long been seen as clear results of natural selection. Animals that look like leaves or moss avoid being eaten. But new studies show the story is more complex. Some insects and plants mimic their surroundings so perfectly that the usual explanations seem too simple. Take walking stick and leaf insects. They copy not just shapes but tiny details like leaf edges, colour patches, and uneven surfaces. Predators who spot patterns often miss these masters of disguise. These insects have no eyes or brains to ‘see’ what they mimic. In South American rainforests, moss-mimicking stick insects look exactly like rough, lichen-covered moss. Their bodies show uneven light and shadows, helped by their behaviour. Yet these insects cannot see the moss they resemble. Even more striking are orchid mantises. They imitate flowers so well they reflect ultraviolet light invisible to humans but clear to pollinators like bees. The mantises themselves can’t see UV patterns but still produce matching reflections that fool their prey into landing on them. A plant example adds to the puzzle. The South American vine Boquila trifoliolata can grow leaves that match the shape, size, colour, and vein patterns of nearby plants – and even plastic leaves. Scientists don’t know how this vine ‘knows’ what to copy, since it lacks vision or brain to understand its surroundings. Some tropical caterpillars go beyond looks and act like snakes when threatened. They puff up and pose just right to scare away predators. This behaviour is complex yet happens in simple creatures with limited nervous systems. All these examples share extreme mimicry: precise, detailed imitation that tricks the eyes of other animals. This isn’t just random colour matching but involves textures, shapes, light properties, and smart behaviour. Standard evolution says mimicry helps survival, so alike shapes are favoured. But how such precise copying evolved without ‘seeing’ is still unknown. Intermediate steps seem unlikely to work well in many cases. Scientists now ask: How do organisms without eyes copy visuals so well? What clues help plants grow perfect mimic leaves? Are we missing how complex forms develop, focusing only on survival benefits later? These puzzles don’t reject evolution, but push us to learn more about it. Nature’s mysteries inspire wonder and new science. The search continues for answers to how life’s astonishing tricks arise.