Insect camouflage is fascinating to me, and leaf insects are definitely my favorite. Other animals, including birds and some insects, camouflage themselves with coloring on their bodies, which is cool. However, leaf insects and stick insects to to the furthest extent of camouflage and look exactly like the objects they are hiding in. It's not extremely versatile camouflage, as you always have to hide in leaves, but they still look the coolest of any animal.