  A collection of unit cubes with integer coordinates in $\mathbb R^3$ is an
animal if its union is homeomorphic to the 3-ball. Pach's animal problem asks
whether any animal can be transformed to a single cube by adding or removing
cubes one by one in such a way that any intermediate step is an animal as well.
Here we provide an example of an animal that cannot be transformed to a single
cube this way within its bounding box.
