Researchers have found new evidence on how tough survival can be for big predators such as tigers, lions, polar bears and leopards.
CNN's Colleen McEdwards shows us a Russian tiger park helping to save the species.
DiCaprio was en route to the Tiger Summit when an engine blew and he emergency landed back in N.Y.
How much would it cost to save tigers from extinction in the wild? Thirty-five million more dollars a year.
In 2010, the Year of the Tiger, about 3,600 of the majestic predators remain in the wild, their existence threatened by habitat-loss and poaching.
Rising numbers of captive tigers in the United States are putting citizens at risk and could be fueling illegal trade in animal parts, which threatens their survival in the wild, conservationists have warned.
The Indonesian government is considering a controversial plan to place endangered tigers in private homes.
A male Sumatran tiger rears up against the bars of his cage, roaring. Even in captivity these creatures still remind us of their awesome power.
Tigers could become extinct in the wild in less than a generation, the World Wildlife Fund warned Wednesday as it launched a campaign to save them.