Mother Nature Network: Tigers still have enough habitat to bounce back
A new satellite survey suggests tigers could still double their wild population by 2022 -- rare optimism for the endangered big cats.
When the 20th century began, about 100,000 wild tigers still roamed across wooded swaths of Asia. Fewer than 3,500 of the iconic cats exist today, living in fragments of forest that only add up to about 7 percent of the species' historic range.
Tigers may never regain their former glory, but that doesn't mean...