Cats in the United States the appearance of humans in the Americas. Some prehistoric animals referred to as "saber-toothed cats" were in fact marsupials and not cats at all, but called such because of their resemblance to true felines with large canine teeth. Two main species of big cat currently inhabit the United States. One is the jaguar ("Panthera onca"), which is related to many species of big cat found on other continents and can be found in the southwestern US and as far south as northern Argentina. The other, the cougar ("Puma concolor"), which is also known as the puma or mountain lion, is
Big Cat Diary third series of "Big Cat Week". Filmed over eight years, "Chimp Week" followed the lives of two family groups of chimpanzees in Gombe Stream National Park in Tanzania. It was narrated by Jonathan Scott and broadcast in January 2006. Currently available on Region 2 DVD are the 2004, 2005 and 2006 series of "Big Cat Week" (packaged as series 1 to 3, with series 1 and 2 being packaged together), the 2007 series of "Big Cat Diary" (packaged as series 4 of "Big Cat Week") and highlights from "Big Cat Live" (packaged as "Big Cat Special"). There is also a