What is a unique characteristic of stick and leaf insects?

What is a unique characteristic of stick and leaf insects?

• A. They glow under ultraviolet light
• B. They have no disguise and rely on speed
• C. They mimic twigs or leaves to blend in with their surroundings
• D. They are primarily aquatic

Answer: (C)

Camouflage through resemblance to natural objects is the trait being tested. Stick insects have slender, twig-like bodies that mimic sticks, while leaf insects have broad, leaf-shaped bodies with veined textures and jagged edges to resemble real leaves. This disguise lets them blend into branches and foliage, making predators like birds less likely to notice them. They often stay still or sway gently to imitate wind, further enhancing the illusion of being part of the plant, rather than moving as a separate creature. This strategic hiding—rather than relying on speed or brightness—is their main defense, and they’re not aquatic. So the defining feature is their ability to mimic twigs or leaves to blend into their surroundings.