A walk through a forest, a dry scrubland or even a garden hedge can feel perfectly ordinary until something moves. Some snakes have spent millions of years perfecting the art of vanishing into their surroundings, with patterns that mimic fallen leaves, dry grass, sand and green vines. Their disguise is not meant to scare anyone. It helps them hide from predators and surprise prey, and it is why many bites happen when a snake is accidentally stepped on. Here are five snakes that are experts at blending in, and what makes each of them so hard to spot.
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