Copy and Pasted from mentalfloss.com, (I love this website): Like the cat, the fox is most active after the sun goes down. In fact, it has vertically oriented pupils that allow it to see in dim light. It even hunts in a similar manner to a cat, by stalking and pouncing on its prey.
And that's just the beginning of the similarities. Like the cat, the fox has sensitive whiskers and spines on its tongue. It walks on its toes, which accounts for its elegant, cat-like tread. And foxes are the only member of the dog family that can climb trees. Gray Foxes have claws that allow them to climb and descend vertical trees quickly. Some foxes even sleep in trees—just like cats.