In 2008, while jogging along the Rio Grande River in South Texas, Matthew Webster spotted something moving. He made out the sleek, dark outline of a cat-like animal. Matthew thought that he had caught a glimpse of the elusive Gulf Coast jaguarundi. The last confirmed sighting of this creature in the United States was in 1986, however. Could this rare animal still be living in the U.S.? In Jaguarundi: Otter Cat, kids go on a real-life adventure with...