facts.

Tigers are an endangered species. Wild tigers in Asia -- their natural habitat -- may soon disappear. As conservationist, Marjorie Stoneman Douglas, has been paraphrased: Saving the tiger is a test. If we pass, we get to keep the planet. Fact: Tigers keep their claws sharp for killing by pulling in their retractable claws into a protective sheath. Fact: Most tigers have more than 100 stripes, and no two tigers have identical stripes.