Happy International Tiger Day! The Tiger (Panthera tigris) is the largest living species of all the feline species. It can reach lengths of 10 feet long. There is only ONE species of living tigers, but a few different subspecies are recognized. The White Tiger is not a subspecies of the tiger, but is just a genetic variation. Sadly, the tigers haven’t been doing well in the wild. They have been wiped out of an estimated 93% of their historic range. Luckily, many conservation organizations are working to save them. Most of the work involves protecting and restoring habitat for the tigers while keeping them safe from poachers.