The 300-pound feline once roamed much of Central Asia, but poaching and habitat destruction led to its extinction in the 1960s. "When [the Caspian tiger] disappeared, the number of nations that hosted ...

Caspian tigers were some of the largest cats ... Soviet era destroyed the woodlands and reed beds that were critical tiger habitat, which caused the cats' prey to disappear too.

At one time, tigers lived across the Eurasian continent, from the Caspian Sea to the Russian ... a new real-time monitoring ...