Her dog saved her by caring for Karina for nine days then returning home and guiding rescuers to her.
Oil slicks, sewage, industrial waste and rubbish floating sea is harming wildlife and could lead to marine crisis.
The rare predator was caught after weeks of wandering into a village in Russian Far East.
A deal was signed giving South Korean scientists exclusive rights on cloning the woolly mammoth from tissue samples found recently in the Siberian permafrost.
The number of Amur leopards in the wild in the Far East of Russia has dramatically increased, say wildlife experts.