There are some casesof tigers. Tigers aren't many numbers now, however we can see it easy in somewhere.
In Nation Park in India, many tourists can see a Bengal tiger back of the woods. Today, many people went there for see tigers. But, there are not many numbers, so it would be extinct soon.
In one of religions of India, there were 300 tigers in 2006, but there were only 257 tigers in 2011. Maybe, after a hundred of years, there will be not more tigers in the world, because this numbers are decreasing constantly, so it's better to go to see it now, please don't wait anymore.