SILVER SPRING, Md. – July 29 is International Tiger Day, which celebrates a critically endangered species and inspires help for tigers, which are vanishing. Tigers are one of the most threatened victims of illegal trade. In the last century, 97% of the wild tiger population has disappeared, and fewer than 4,000 tigers remain in the wild. Of the eight subspecies of tiger, three are already extinct. The Wildlife Trafficking Alliance (WTA) uses International Tiger Day to raise awareness about the demand and illegal trade of tigers and their parts, threatening this species with extinction.