Introduction A panda reclining on a cloud has to keep its black forelegs visible even though most of the torso...

Introduction A fox’s tail can approach the body in visual size, so shrinking the cream tip turns this animal into...

Introduction A duck’s bill has to stay wider than its muzzle while a flower crown pulls visual weight toward the...

Introduction A snail shell normally curls inward; this one has to hold two rounded heart lobes upright without tipping the...

Introduction A jellyfish bell can be almost spherical at the crown, but its lower edge must flare before eighteen tentacles...

Introduction A penguin’s white face patches meet above the beak but should never erase the black wedge running down from...

Introduction A rabbit sitting inside a carrot has one structural problem: the ears must rise above the foliage while the...

Introduction A Shiba’s tail should curl over the back, but that curve has to remain visible beside a bulky scarf...

Introduction A floral curtain fails if every blossom hangs from an isolated vertical string; the upper third needs to behave...

Introduction A duck bill needs to stay broad and flat even when the rest of the head is nearly spherical....