Woodpeckers and fungi are partners in crime: Woodpeckers spread fungal spores and, in turn, fungi decay wood which woodpeckers bore into in search of food.
The woodpecker's tail and feet are designed to make pecking easier.
If you're ever in the desert look out for these peculiar boots. Hint: They aren't on cowboys' feet.
What came first? The woodpecker or the fungus? Find out on this Moment of Science.