Giant Kangaroo Rats. There's an entire population of them out there, and perhaps unbeknownst to you, they're already firmly entrenched in the Central Californian ecosystem. Just to clear things up--scientists are watching them from space, via satellite, as part of a program spearheaded by the Nature Conservancy and UC Berkeley researchers.
Using satellite remote sensing data, the scientists will be able to efficiently count the rats' population and map out their whereabouts. So why all the attention on a couple rats, though of the giant kangaroo variation they may be?