They really shouldn't call these Kangaroo Rats. They're too cute to call them rats. They hop just like Kangaroos and are adorable to watch.
This is a San Joaquin Kangaroo Rat. There are 20 species of kangaroo rats but this one is a federal and state listed endangered species.
Though they only survive in a 3 places in California, they are incredibly common in this one little spot.

Carrizo Plain, California
April 2011