[The Leaf Has a Spiral Joint on Which to Turn]

[Optical Illusions]

[Optical Illusions]

[Optical Illusions]

[Optical Illusions]

[Optical Illusions]

[Ear of a Mole Cricket on the Front Leg]

[Back of the Frog’s Eyes Are the Ear Drums]

[A Newt]

[The Leaves Take in Air Through Breathing Holes]