Fruitafossor windscheffelia was specialized to eat termites. The chipmunk-size creature, discovered in Colorado, lived 150 million years ago--100 million years before the ancestors of today's termite-eaters (sloths, aardvarks and armadillos) arose. This, conclude Zhe-Xi Luo of the Carnegie Museum of Natural History and his colleagues in the current issue of Science, indicates that mammals evolved the specialized anatomy for subsisting on termites at least twice.